| Name | Locality | Local Authority | Administrative area |
| Llafar Y Nant | Llansantffraid Glyn Ceiriog | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llain Bryniau | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llain Deg | Bethesda | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llain Deg | Bala | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llain Delyn | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llain Delyn | Llansteffan | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llain Delyn | Trewalchmai | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llain Drigarn | Crymych | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Llain Goch | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llain Henllan | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llain Portland | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llain Wen | Llanfair-Mathafarn-Eithaf | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llain Y Delyn | Bodedern | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llain Y Felin | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llain Y Pebyll | Bethesda | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llain Yr Eglwys | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llain Yr Ysgol | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llainfaen | Llanaelhaearn | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llainfain Estate | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llaingoch | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llan Arrow | Huntington | County of Herefordshire | County of Herefordshire |
| Llan Lane | Llanbadoc | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llan Lane | Goetre Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llan Road | St. Donats | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llan Road | Llangynwyd Middle | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llan-fach Road | Abercarn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llan-yr-avon Square | Llanyrafon | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llan-yr-avon Way | Llanyrafon | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llanafan Road | Llanyre | Powys / Powys | Powys / Powys |
| Llanarmon Road | Llansantffraid Glyn Ceiriog | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llanarmon Road | Brymbo | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llanarth Close | Bedwas, Trethomas and Machen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanarth Road | Crumlin | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanarth Road | Pontllanfraith | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanarth Square | Risca | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanarth Street | Bedwas, Trethomas and Machen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanarth Street | Ynysddu | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanasa Road | Llanasa | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llanaway Close | Godalming | Waverley District (B) | Surrey County |
| Llanaway Road | Godalming | Waverley District (B) | Surrey County |
| Llanbad | Llanharan | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanbadarn Road | Aberystwyth | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llanbadarn Road | Llanbadarn Fawr | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llanbeblig Road | Waunfawr | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanbeblig Road | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanbedr Road | Crickhowell | Powys / Powys | Powys / Powys |
| Llanbedr Road | Fairwater | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanberis Close | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanberis Grove | Portland | City of Nottingham (B) | City of Nottingham (B) |
| Llanberis Road | Cheadle Hulme North | Stockport District (B) | Stockport District (B) |
| Llanberis Road | Llanrug | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanberis Road | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanberis Road | Llanrug | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanberis Road | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanbleddian Gardens | Cathays | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanbradach Street | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanbradach Street | Grangetown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanbryn Gardens | Llanharan | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanbury Close | Chalfont St. Peter | Chiltern District | Buckinghamshire County |
| Llancaiach Court | Nelson | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llancaiach Road | Whitchurch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llancaiach View | Nelson | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llancayo Park | Bargoed | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llancayo Street | Bargoed | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llandafen Road | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandaff Chase | Llandaff | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandaff Close | Sutton Green & Manor | Cheshire West and Chester (B) | Cheshire West and Chester (B) |
| Llandaff Close | Penarth | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llandaff Drive | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llandaff Green | Cwmbran Central | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llandaff Road | Beaufort | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Llandaff Road | Canton | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandaff Road | Riverside | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandaff Street | Stow Hill | Casnewydd / Newport | Casnewydd / Newport |
| Llandaff Way | Cymmer | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanddewi Street | Aberaman | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanddoged Road | Llanddoged and Maenan | Conwy / Conwy | Conwy / Conwy |
| Llanddoged Road | Llanrwst | Conwy / Conwy | Conwy / Conwy |
| Llanddoget Road | Llanddoged and Maenan | Conwy / Conwy | Conwy / Conwy |
| Llanddulas Avenue | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llanddwyn Island Close | Penyrheol, Trecenydd and Energlyn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llandegai Road | Llandygai | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llandegai Road | Llandygai | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llandegai Road | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llandegefedd Way | New Inn | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llandegfedd Close | Llanishen | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandegfedd Close | Rogerstone | Casnewydd / Newport | Casnewydd / Newport |
| Llandegveth Close | Croesyceiliog | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llandeilo Road | Quarter Bach | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Gorslas | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Cwmamman | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Quarter Bach | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Gorslas | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Llanfihangel Aberbythych | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandeilo Road | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandennis Avenue | Cyncoed | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandennis Green | Cyncoed | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandennis Road | Cyncoed | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanderfel Court | Upper Cwmbran | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llandetty Road | Fairwater | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandilo Close | Dinas Powys | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llandilo Street | Barton and Tredworth | Gloucester District (B) | Gloucestershire County |
| Llandinam Crescent | Llandaff North | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandinam Road | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llandogo Road | Trellech United | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llandogo Road | Trowbridge | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandore Close | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llandough Hill | Llandough | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llandough Street | Cathays | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandovery Close | Winsford | Cheshire West and Chester (B) | Cheshire West and Chester (B) |
| Llandovery Close | Caerau | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandovery Road | Llanwrtyd Wells | Powys / Powys | Powys / Powys |
| Llandovery Road | Llanwrtyd Wells | Powys / Powys | Powys / Powys |
| Llandow Road | Caerau | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandowlais Street | Llantarnam | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llandraw Woods | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llandrillo Road | Cynwyd | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llandudno Road | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llandudno Road | Rumney | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llandudno Road | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llandudno Road | Rhos-on-Sea | Conwy / Conwy | Conwy / Conwy |
| Llandybie Road | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandybie Road | Ammanford | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llandyfrig Close | Dinas Powys | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llandyry | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llanedeyrn Close | Roath | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanedeyrn Drive | Pentwyn | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanedeyrn Road | Roath | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanedi Road | Llanedi | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llanedy Road | Llanedi | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llanegryn Street | Llanfihangel-y-Pennant | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llaneilian Road | Amlwch | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llaneilian Road | Llaneilian | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llanelian Heights | Old Colwyn | Conwy / Conwy | Conwy / Conwy |
| Llanelian Road | Betws Yn Rhos | Conwy / Conwy | Conwy / Conwy |
| Llanelian Road | Old Colwyn | Conwy / Conwy | Conwy / Conwy |
| Llanelian Road | Old Colwyn | Conwy / Conwy | Conwy / Conwy |
| Llanellen Road | Llanfoist Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanelly Road | Childs Hill | Barnet London Boro | Greater London Authority |
| Llanelwedd Terrace | Llanelwedd | Powys / Powys | Powys / Powys |
| Llanerch | Caerhun | Conwy / Conwy | Conwy / Conwy |
| Llanerch Crescent | Gorseinon | Abertawe / Swansea | Abertawe / Swansea |
| Llanerch Goed | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanerch Lane | Llandrindod Wells | Powys / Powys | Powys / Powys |
| Llanerch Lane | Crumlin | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanerch Road | Bonymaen | Abertawe / Swansea | Abertawe / Swansea |
| Llanerch Road | Crumlin | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanerch Road | Dunvant | Abertawe / Swansea | Abertawe / Swansea |
| Llanerch Terrace | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llanerch-y-mor | Penmaenmawr | Conwy / Conwy | Conwy / Conwy |
| Llanewrwg Way | Trowbridge | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanfabon Court | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanfabon Drive | Bedwas, Trethomas and Machen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanfabon Road | Nelson | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanfach Road | Abercarn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanfaes | Ystradgynlais | Powys / Powys | Powys / Powys |
| Llanfaes Parc | Beaumaris | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llanfair Gardens | Mumbles | Abertawe / Swansea | Abertawe / Swansea |
| Llanfair Hill | Ystrad | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanfair Road | Edgeley | Stockport District (B) | Stockport District (B) |
| Llanfair Road | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llanfair Road | Pen-y-Graig | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanfair Road | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanfair Road | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llanfair Road | Riverside | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanfair Road | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llanfair Road | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llanfawr Close | Llandrindod Wells | Powys / Powys | Powys / Powys |
| Llanfawr Close | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llanfawr Road | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llanfedw Close | Van | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanfoist Street | Pentre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanforda Close | Oswestry | Shropshire | Shropshire |
| Llanforda Mead | Oswestry | Shropshire | Shropshire |
| Llanforda Rise | Oswestry | Shropshire | Shropshire |
| Llanfrechfa Way | Cwmbran Central | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llanfrechfa Way | Llanyrafon | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llangadog Road | Kidwelly | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llangan Road | Whitland | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llangar Grove | Crowthorne | Bracknell Forest (B) | Bracknell Forest (B) |
| Llangattock Road | Fairwater | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llangattwg Close | Beaufort | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Llangefni Place | Llanishen | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llangeinor Road | Ynysawdre | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llangeinor Terrace | Ogmore Valley | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llangenny Lane | Crickhowell | Powys / Powys | Powys / Powys |
| Llangenny Lane | The Vale of Grwyney | Powys / Powys | Powys / Powys |
| Llangewydd Road | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llangewydd Road | Bridgend | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llangollen Road | Cefn | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llangollen Road | Llangollen Rural | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llangollen Road | Ruabon | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llangollen Road | Llangollen | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llangorse Close | Stourport-on-Severn | Wyre Forest District | Worcestershire County |
| Llangorse Drive | Rogerstone | Casnewydd / Newport | Casnewydd / Newport |
| Llangorse Road | Penderry | Abertawe / Swansea | Abertawe / Swansea |
| Llangorse Road | Cwmbach | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llangorse Road | Llanyrafon | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llangorse Road | Cyncoed | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llangranog Place | Llanishen | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llangranog Road | Llanishen | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llangrove Road | Whitchurch | County of Herefordshire | County of Herefordshire |
| Llanguicke Road | Pontardawe | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llangurig Road | Llanidloes | Powys / Powys | Powys / Powys |
| Llangurig Road | Llangurig | Powys / Powys | Powys / Powys |
| Llangwm | Penderry | Abertawe / Swansea | Abertawe / Swansea |
| Llangwm Place | Rumney | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llangwn Way | Porthcawl | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llangyfelach Road | Mynyddbach | Abertawe / Swansea | Abertawe / Swansea |
| Llangyfelach Road | Cwmbwrla | Abertawe / Swansea | Abertawe / Swansea |
| Llangyfelach Road | Castle | Abertawe / Swansea | Abertawe / Swansea |
| Llangyfelach Road | Mynyddbach | Abertawe / Swansea | Abertawe / Swansea |
| Llangyfelach Road | Landore | Abertawe / Swansea | Abertawe / Swansea |
| Llangyfelach Street | Castle | Abertawe / Swansea | Abertawe / Swansea |
| Llangynidr Road | Fairwater | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llangynidr Road | Llangattock | Powys / Powys | Powys / Powys |
| Llangynidr Road | Llangynidr | Powys / Powys | Powys / Powys |
| Llangynidr Road | Beaufort | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Llanharran Terrace | Ogmore Valley | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llanharry Road | Pont-y-Clun | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanharry Road | Llanharan | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanharry Road | Llanharry | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanidloes Road | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llanidloes Road | Llandaff North | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanidloes Road | Mochdre | Powys / Powys | Powys / Powys |
| Llanidloes Road | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llanina Grove | Trowbridge | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanion Cottages | Pembroke Dock | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Llanishen Court | Llanishen | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanishen Street | Gabalfa | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanllechid Road | Llanllechid | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanllechid Road | Bethesda | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llanllienwen Close | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llanllienwen Road | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llanllowell Lane | Llantrisant Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanmaes Road | Llantwit Major | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llanmaes Street | Grangetown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanmead Gardens | Rhoose | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llanmihangel Road | Llanfair | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llanmihangel Road | Cowbridge with Llanblethian | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llanmorlais Road | Llandaff North | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llannant Road | Gorseinon | Abertawe / Swansea | Abertawe / Swansea |
| Llannerch Road | Llanfairfechan | Conwy / Conwy | Conwy / Conwy |
| Llannerch Road East | Colwyn Bay | Conwy / Conwy | Conwy / Conwy |
| Llannerch Road East | Rhos-on-Sea | Conwy / Conwy | Conwy / Conwy |
| Llannerch Road West | Rhos-on-Sea | Conwy / Conwy | Conwy / Conwy |
| Llannon Road | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llannon Road | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llannon Road | Pontyberem | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llanofer Road | Glyncorrwg | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llanon Road | Llanishen | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanon The Glibes | Michaelchurch Escley | County of Herefordshire | County of Herefordshire |
| Llanover Avenue | Pontllanfraith | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanover Close | Blaenavon | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llanover Close | Malpas | Casnewydd / Newport | Casnewydd / Newport |
| Llanover Road | Woolwich Common | Greenwich London Boro | Greater London Authority |
| Llanover Road | Preston | Brent London Boro | Greater London Authority |
| Llanover Road | Abersychan | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llanover Road | Blaenavon | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llanover Road | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanover Road | Ely | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanover Street | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llanover Street | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanover Street | Abercarn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llanover Way | Abergavenny | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanquian Close | Cowbridge with Llanblethian | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llanquian Road | Cowbridge with Llanblethian | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llanrhian Road | Llanrhian | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Llanrhos Road | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llanrhydd Road | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llanrhydd Road | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llanrumney Avenue | Rumney | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanrumney Avenue | Llanrumney | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanrwst Close | Dingle | Liverpool District (B) | Liverpool District (B) |
| Llanrwst Road | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Henryd | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Colwyn Bay | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Eglwysbach | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Llanddoged and Maenan | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Llansanffraid Glan Conwy | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Henryd | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Betws Yn Rhos | Conwy / Conwy | Conwy / Conwy |
| Llanrwst Road | Colwyn Bay | Conwy / Conwy | Conwy / Conwy |
| Llansannor Drive | Butetown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llansawel Crescent | Briton Ferry | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llanshay Lane | Presteigne | Powys / Powys | Powys / Powys |
| Llanshay Lane | Knighton | Powys / Powys | Powys / Powys |
| Llansteffan Road | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llansteffan Road | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llanstephan Road | Rumney | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantarnam Close | Cwmbran Central | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llantarnam Drive | Radyr and Morganstown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantarnam Gardens | Llantarnam | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llantarnam Park Way | Llantarnam | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llantarnam Road | Llantarnam | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llantarnam Road | Cwmbran Central | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llantarnam Road | Gabalfa | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanthewy Close | Croesyceiliog | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llanthewy Road | Allt-yr-Yn | Casnewydd / Newport | Casnewydd / Newport |
| Llanthomas Lane | Llanigon | Powys / Powys | Powys / Powys |
| Llanthony Close | Caldicot | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanthony Road | Westgate | Gloucester District (B) | Gloucestershire County |
| Llanthony Road | Ravensbury | Merton London Boro | Greater London Authority |
| Llanthony Road | Westgate | Gloucester District (B) | Gloucestershire County |
| Llantillio Drive | Ham | City of Plymouth (B) | City of Plymouth (B) |
| Llantrisant Rise | Llandaff | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantrisant Road | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Road | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Road | Llantrisant | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Road | Tonyrefail | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Road | Fairwater | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantrisant Road | Radyr and Morganstown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantrisant Road | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantrisant Road | St. Fagans | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantrisant Road | Llandaff | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantrisant Road | Pont-y-Clun | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Road | Llantrisant | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Road | Llantrisant | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Road | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantrisant Street | Cathays | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llantrithyd Road | Llanfair | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Gardens Close | St. Athan | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Major Road | Llandow | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Major Road | Cowbridge with Llanblethian | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Major Road | Llandow | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Major Road | Llantwit Major | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Major Road | Cowbridge with Llanblethian | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Road | Llantwit Major | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Road | St. Athan | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Road | Wick | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Road | Neath | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llantwit Road | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantwit Road | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llantwit Street | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llantwit Street | Cathays | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanvair Close | Sunninghill | Windsor and Maidenhead (B) | Windsor and Maidenhead (B) |
| Llanvair Drive | Sunninghill | Windsor and Maidenhead (B) | Windsor and Maidenhead (B) |
| Llanvair Road | Caerwent | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanvair Road | St. Julians | Casnewydd / Newport | Casnewydd / Newport |
| Llanvanor Road | Childs Hill | Barnet London Boro | Greater London Authority |
| Llanwenarth Road | Llanfoist Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanwenarth View | Llanfoist Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanwern | Llanarth | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llanwern Road | Ely | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llanwern Road | Ringland | Casnewydd / Newport | Casnewydd / Newport |
| Llanwern Street | Victoria | Casnewydd / Newport | Casnewydd / Newport |
| Llanwnen Road | Lampeter | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llanwonno Close | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanwonno Road | Penrhiwceiber | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanwonno Road | Tylorstown | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanwonno Road | Ynyshir | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanwonno Road | Mountain Ash | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanwonno Road | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanwonno Road | Aberaman | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llanwonog Lane | Longtown | County of Herefordshire | County of Herefordshire |
| Llanwye Close | Hereford | County of Herefordshire | County of Herefordshire |
| Llanynant Road | Llantrisant Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanynant Road | Llangwm | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llanyrnewydd | Llanrhidian Higher | Abertawe / Swansea | Abertawe / Swansea |
| Llarwydden Close | Penllergaer | Abertawe / Swansea | Abertawe / Swansea |
| Llawnroc Close | Camborne | Cornwall | Cornwall |
| Llawr Pentre | Old Colwyn | Conwy / Conwy | Conwy / Conwy |
| Llawr Y Dref | Llangefni | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llawr Y Nant | Bethesda | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llawr- Y-dyffryn | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llawrgors | Pwllheli | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llay Court | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llay Hall Avenue | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llay New Road | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llay New Road | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llay New Road | Gwersyllt | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llay Place Avenue | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llay Road | Rossett | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llay Road | Llanfynydd | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llay Road | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Lle Alffa | Baglan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lle Bertha | Margam | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lle Canol | Glyncorrwg | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lle Hyfryd | Llwydcoed | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Lle Maendy | Upper Cwmbran | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Lle'r Farchnad | Ffestiniog | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Lle'r Ffald | Aberystwyth | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llechyfedach | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Lledfair Place | Machynlleth | Powys / Powys | Powys / Powys |
| Lleprog Lane | Bagillt | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Lleprog Lane | Halkyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Lleprog Lane | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Lletai Avenue | Pencoed | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llethri Road | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llethyr Bryn | Llandrindod Wells | Powys / Powys | Powys / Powys |
| Lletty Dafydd | Clyne and Melincourt | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lletty Dafydd | Resolven | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lletty Dafydd | Clyne and Melincourt | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lletty Lane | Llansantffraid | Powys / Powys | Powys / Powys |
| Llettyharri | Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llety Road | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llety'r Bugail | Llangynwyd Middle | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llety'r Eos | Rhoose | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llewelen Goch | St. Fagans | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llewellin Close | Lytchett Minster and Upton | Purbeck District | Dorset County |
| Llewellin Road | Kington | County of Herefordshire | County of Herefordshire |
| Llewellin Street | Alway | Casnewydd / Newport | Casnewydd / Newport |
| Llewellyn Avenue | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llewellyn Avenue | Ely | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llewellyn Close | Stourport-on-Severn | Wyre Forest District | Worcestershire County |
| Llewellyn Close | Tai Bach | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llewellyn Close | Camelford | Cornwall | Cornwall |
| Llewellyn Close | Cathedral | Chelmsford District (B) | Essex County |
| Llewellyn Drift | Kesgrave | Suffolk Coastal District | Suffolk County |
| Llewellyn Drive | Caerphilly | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llewellyn Drive | Pembroke | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Llewellyn Drive | Newcastle Higher | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llewellyn Grove | Malpas | Casnewydd / Newport | Casnewydd / Newport |
| Llewellyn Park | Twyford | Wokingham (B) | Wokingham (B) |
| Llewellyn Place | Porthill | Shropshire | Shropshire |
| Llewellyn Road | Penllergaer | Abertawe / Swansea | Abertawe / Swansea |
| Llewellyn Road | Royal Leamington Spa | Warwick District | Warwickshire County |
| Llewellyn Roberts Way | Market Drayton | Shropshire | Shropshire |
| Llewellyn Street | Shotton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llewellyn Street | Tylorstown | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewellyn Street | Pen-y-Graig | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewellyn Street | Gilfach Goch | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewellyn Street | Ogmore Valley | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llewellyn Street | Park | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llewellyn Street | Glynneath | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llewellyn Street | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llewellyn Street | Treherbert | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewellyn Street | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llewellyn Street | Neath | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llewellyn Street | Aberavon | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llewellyn Street | Aberdare | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewellyn Street | Pentre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewellyn Terrace | Ynysybwl and Coed-y-Cwm | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewellyn Walk | Malpas | Casnewydd / Newport | Casnewydd / Newport |
| Llewellyn Way | Weston-Super-Mare | North Somerset | North Somerset |
| Llewellyn's Road | Margam Moors | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llewelyn Avenue | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llewelyn Avenue | Crumlin | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llewelyn Avenue | Llansanffraid Glan Conwy | Conwy / Conwy | Conwy / Conwy |
| Llewelyn Circle | Townhill | Abertawe / Swansea | Abertawe / Swansea |
| Llewelyn Close | Cilmery | Powys / Powys | Powys / Powys |
| Llewelyn Close | Tywyn | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llewelyn Court | Brymbo | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llewelyn Court | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llewelyn Crescent | Askern | Doncaster District (B) | Doncaster District (B) |
| Llewelyn Drive | Arthog | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llewelyn Drive | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llewelyn Park Drive | Mynyddbach | Abertawe / Swansea | Abertawe / Swansea |
| Llewelyn Road | Coedpoeth | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llewelyn Road | Brymbo | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llewelyn Road | Tywyn | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llewelyn Road | Colwyn Bay | Conwy / Conwy | Conwy / Conwy |
| Llewelyn Street | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llewelyn Street | Dowlais | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llewelyn Street | Bargoed | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llewelyn Street | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llewelyn Street | Aberffraw | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llewelyn Street | Amlwch | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llewelyn Street | Sketty | Abertawe / Swansea | Abertawe / Swansea |
| Llewelyn Street | Bro Machno | Conwy / Conwy | Conwy / Conwy |
| Llewelyn View | Rhos-on-Sea | Conwy / Conwy | Conwy / Conwy |
| Llewelyn's Estate | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llewelyns View | Gilfach Goch | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Lleyn Street | Pwllheli | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Lleyn Street | Llannor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Lleyn Street | Pwllheli | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Lliedi Crescent | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Lligwy Street | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llindir Road | Llanddulas and Rhyd-y-Foel | Conwy / Conwy | Conwy / Conwy |
| Llindir Street | Henllan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Lliw Valley Close | Gowerton | Abertawe / Swansea | Abertawe / Swansea |
| Llmekiln Court | Bulwell West | City of Nottingham (B) | City of Nottingham (B) |
| Llon Cardi Bach | Cilgerran | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Lloyd Avenue | Shettleston | Glasgow City | Glasgow City |
| Lloyd Avenue | Hetton | Sunderland District (B) | Sunderland District (B) |
| Lloyd Avenue | Cheadle | Stockport District (B) | Stockport District (B) |
| Lloyd Avenue | Carshalton South and Clockhouse | Sutton London Boro | Greater London Authority |
| Lloyd Avenue | Norbury | Croydon London Boro | Greater London Authority |
| Lloyd Avenue | Marchwood | New Forest District | Hampshire County |
| Lloyd Avenue | Birkenhead | Wirral District (B) | Wirral District (B) |
| Lloyd Avenue | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Lloyd Avenue | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Lloyd Avenue | Llanhilleth | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Lloyd Avenue | Shiphay | Torbay (B) | Torbay (B) |
| Lloyd Avenue | Llandaff | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Lloyd Baker Street | Clerkenwell | Islington London Boro | Greater London Authority |
| Lloyd Close | Walverden | Pendle District (B) | Lancashire County |
| Lloyd Close | Stanford | The City of Brighton and Hove (B) | The City of Brighton and Hove (B) |
| Lloyd Close | Hemmingwell | Wellingborough District (B) | Northamptonshire County |
| Lloyd Close | Attleborough | Nuneaton and Bedworth District (B) | Warwickshire County |
| Lloyd Close | Norton and Lenchwick | Wychavon District | Worcestershire County |
| Lloyd Close | Budbrooke | Warwick District | Warwickshire County |
| Lloyd Close | Hesters Way | Cheltenham District (B) | Gloucestershire County |
| Lloyd Close | Castle | Lancaster District (B) | Lancashire County |
| Lloyd Close | Breckfield | Liverpool District (B) | Liverpool District (B) |
| Lloyd Close | Farndon | Cheshire West and Chester (B) | Cheshire West and Chester (B) |
| Lloyd Close | Comeytrowe | Taunton Deane District (B) | Somerset County |
| Lloyd Close | Heslington | York (B) | York (B) |
| Lloyd Court | Pinner South | Harrow London Boro | Greater London Authority |
| Lloyd Court | Burgh | South Lanarkshire | South Lanarkshire |
| Lloyd Crescent | Newton West | St. Helens District (B) | St Helens District (B) |
| Lloyd Crescent | Wyken | Coventry District (B) | Coventry District (B) |
| Lloyd Drive | Wombourne | South Staffordshire District | Staffordshire County |
| Lloyd Drive | Kemsley | Swale District (B) | Kent County |
| Lloyd Drive | Royden | Wirral District (B) | Wirral District (B) |
| Lloyd Drive | Whitby | Cheshire West and Chester (B) | Cheshire West and Chester (B) |
| Lloyd Drive | Calder Valley | North Lanarkshire | North Lanarkshire |
| Lloyd Gardens | Altrincham | Trafford District (B) | Trafford District (B) |
| Lloyd George Avenue | Butetown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Lloyd George Close | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Lloyd George Grove | Heath Hayes and Wimblebury | Cannock Chase District | Staffordshire County |
| Lloyd George Lane | Pembroke | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Lloyd Goring Close | Angmering | Arun District | West Sussex County |
| Lloyd Maunder Road | Willand | Mid Devon District | Devon County |
| Lloyd Mews | Enfield Lock | Enfield London Boro | Greater London Authority |
| Lloyd Park Avenue | Fairfield | Croydon London Boro | Greater London Authority |
| Lloyd Passage | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Lloyd Place | Hemswell Cliff | West Lindsey District | Lincolnshire County |
| Lloyd Place | Blacon Lodge | Cheshire West and Chester (B) | Cheshire West and Chester (B) |
| Lloyd Place | Trowbridge | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Lloyd Road | Taverham | Broadland District | Norfolk County |
| Lloyd Road | Crome | Norwich District (B) | Norfolk County |
| Lloyd Road | Levenshulme | Manchester District (B) | Manchester District (B) |
| Lloyd Road | Tettenhall Regis | City of Wolverhampton District (B) | City of Wolverhampton District (B) |
| Lloyd Road | Shotley | Babergh District | Suffolk County |
| Lloyd Road | Broadstairs and St. Peters | Thanet District | Kent County |
| Lloyd Road | River | Barking and Dagenham London Boro | Greater London Authority |
| Lloyd Road | East Ham Central | Newham London Boro | Greater London Authority |
| Lloyd Road | Worcester Park | Sutton London Boro | Greater London Authority |
| Lloyd Road | High Street | Waltham Forest London Boro | Greater London Authority |
| Lloyd Road | Stanford | The City of Brighton and Hove (B) | The City of Brighton and Hove (B) |
| Lloyd Road | Brownsover South | Rugby District (B) | Warwickshire County |
| Lloyd Road | Sandwell | Birmingham District (B) | Birmingham District (B) |
| Lloyd Road | Chichester | Chichester District | West Sussex County |
| Lloyd Road | Prescot | Knowsley District (B) | Knowsley District (B) |
| Lloyd Road | Mynyddbach | Abertawe / Swansea | Abertawe / Swansea |
| Lloyd Square | Clerkenwell | Islington London Boro | Greater London Authority |
| Lloyd Square | Altrincham | Trafford District (B) | Trafford District (B) |
| Lloyd Street | Liswerry | Casnewydd / Newport | Casnewydd / Newport |
| Lloyd Street | Pontardawe | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lloyd Street | Burgh | South Lanarkshire | South Lanarkshire |
| Lloyd Street | Calder Valley | North Lanarkshire | North Lanarkshire |
| Lloyd Street | Milnbank | Glasgow City | Glasgow City |
| Lloyd Street | St. Hilda's | Middlesbrough (B) | Middlesbrough (B) |
| Lloyd Street | Mapperley | City of Nottingham (B) | City of Nottingham (B) |
| Lloyd Street | Rawmarsh West | Rotherham District (B) | Rotherham District (B) |
| Lloyd Street | Firth Park | Sheffield District (B) | Sheffield District (B) |
| Lloyd Street | Sudell | Blackburn with Darwen (B) | Blackburn with Darwen (B) |
| Lloyd Street | Altrincham | Trafford District (B) | Trafford District (B) |
| Lloyd Street | Timperley | Trafford District (B) | Trafford District (B) |
| Lloyd Street | South Reddish | Stockport District (B) | Stockport District (B) |
| Lloyd Street | Brimrod and Deeplish | Rochdale District (B) | Rochdale District (B) |
| Lloyd Street | Heywood North | Rochdale District (B) | Rochdale District (B) |
| Lloyd Street | Central | Manchester District (B) | Manchester District (B) |
| Lloyd Street | Todmorden | Calderdale District (B) | Calderdale District (B) |
| Lloyd Street | Whitworth | Rossendale District (B) | Lancashire County |
| Lloyd Street | Mackworth | City of Derby (B) | City of Derby (B) |
| Lloyd Street | Longton North | City of Stoke-on-Trent (B) | City of Stoke-on-trent (B) |
| Lloyd Street | Wednesbury North | Sandwell District (B) | Sandwell District (B) |
| Lloyd Street | St. Peter's | City of Wolverhampton District (B) | City of Wolverhampton District (B) |
| Lloyd Street | Common | Stafford District (B) | Staffordshire County |
| Lloyd Street | Cannock West | Cannock Chase District | Staffordshire County |
| Lloyd Street | Longton South | City of Stoke-on-Trent (B) | City of Stoke-on-trent (B) |
| Lloyd Street | Clerkenwell | Islington London Boro | Greater London Authority |
| Lloyd Street | West Bromwich Central | Sandwell District (B) | Sandwell District (B) |
| Lloyd Street | Small Heath | Birmingham District (B) | Birmingham District (B) |
| Lloyd Street | Sparkbrook | Birmingham District (B) | Birmingham District (B) |
| Lloyd Street | St. Thomas's | Dudley District (B) | Dudley District (B) |
| Lloyd Street | Blackbrook | St. Helens District (B) | St Helens District (B) |
| Lloyd Street | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Lloyd Street | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Lloyd Street | Ystrad | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Lloyd Street | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Lloyd Street | Hereford | County of Herefordshire | County of Herefordshire |
| Lloyd Street | Ammanford | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Lloyd Street | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Lloyd Street | Oswestry | Shropshire | Shropshire |
| Lloyd Street | Central | Manchester District (B) | Manchester District (B) |
| Lloyd Street North | Hulme | Manchester District (B) | Manchester District (B) |
| Lloyd Street South | Fallowfield | Manchester District (B) | Manchester District (B) |
| Lloyd Street South | Moss Side | Manchester District (B) | Manchester District (B) |
| Lloyd Street West | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Lloyd Terrace | Llandyfriog | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Lloyd Villas | Brockley | Lewisham London Boro | Greater London Authority |
| Lloyd Walk | Stewarton Central | East Ayrshire | East Ayrshire |
| Lloyd Way | Kinver | South Staffordshire District | Staffordshire County |
| Lloyd Way | Kimpton | North Hertfordshire District | Hertfordshire County |
| Lloyd Wise Close | Southchurch | Southend-on-Sea (B) | Southend-on-sea (B) |
| Lloyd Wright Avenue | Bradford | Manchester District (B) | Manchester District (B) |
| Lloyd's Avenue | Harbour | Lancaster District (B) | Lancashire County |
| Lloyd's Avenue | Aldgate | City and County of the City of London | Greater London Authority |
| Lloyd's Crescent | Mostyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Lloyd's Lane | Wootton St. Lawrence | Basingstoke and Deane District (B) | Hampshire County |
| Lloyd's Lane | Chirk | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Lloyd's Lane | Baughurst | Basingstoke and Deane District (B) | Hampshire County |
| Lloyd's Place | Blackheath | Lewisham London Boro | Greater London Authority |
| Lloyd's Row | Clerkenwell | Islington London Boro | Greater London Authority |
| Lloyd's Terrace | Abergwili | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Lloyd's Terrace | Glyncorrwg | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Lloyd-taylor Close | Little Hadham | East Hertfordshire District | Hertfordshire County |
| Lloyds | Woughton on the Green | Milton Keynes (B) | Milton Keynes (B) |
| Lloyds Avenue | Alexandra | Ipswich District (B) | Suffolk County |
| Lloyds Avenue | Kessingland | Waveney District | Suffolk County |
| Lloyds Avenue | Kingsway | North Lincolnshire (B) | North Lincolnshire (B) |
| Lloyds Court | Whipton & Barton | Exeter District (B) | Devon County |
| Lloyds Crescent | Whipton & Barton | Exeter District (B) | Devon County |
| Lloyds Drive | Wyke | Bradford District (B) | Bradford District (B) |
| Lloyds Green | Wittersham | Ashford District (B) | Kent County |
| Lloyds Head | The Gorge | Telford and Wrekin (B) | Telford and Wrekin (B) |
| Lloyds Road | Halesowen North | Dudley District (B) | Dudley District (B) |
| Lloyds Road | Landewednack | Cornwall | Cornwall |
| Lloyds Road | East | Corby District (B) | Northamptonshire County |
| Lloyds Road | East | Corby District (B) | Northamptonshire County |
| Lloyds Road | East | Corby District (B) | Northamptonshire County |
| Lloyds Street | Old Monkland | North Lanarkshire | North Lanarkshire |
| Lloyds Terrace | Penydarren | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Lloyds Way | Kelsey anden Park | Bromley London Boro | Greater London Authority |
| Llttle Oaks | Bromesberrow | Forest of Dean District | Gloucestershire County |
| Lluest | Ystradgynlais | Powys / Powys | Powys / Powys |
| Lluest Lane | Meifod | Powys / Powys | Powys / Powys |
| Lluest-yr-bryn | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llugwy Road | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llundain Fach | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwn Einion Road | Rhosllanerchrugog | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llwn Einion Road | Esclusham | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llwn Yr Eos | Aberystwyth | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llwncelyn Close | Cyfarthfa | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwybr Ceuffordd | Upper Cwmbran | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llwybr Cwfaint | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwybr Maelor | Overton | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llwybr Ty Coch | Llantarnam | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llwybr Y Gath | Abbey Cwmhir | Powys / Powys | Powys / Powys |
| Llwybr Y Llan | Llanycil | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwybr Y Marchog | Penyrheol, Trecenydd and Energlyn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwybr-hir | Caerwys | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwybr-main | Llandygai | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwybry Y Fuwch | Llantysilio | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyd Coed | Rhiwbina | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyd Court | Pen Tranch | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llwyd Grove | Old Colwyn | Conwy / Conwy | Conwy / Conwy |
| Llwyd Y Berth | Penyrheol, Trecenydd and Energlyn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwydarth Cottages | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwydarth Road | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwydarth Road | Llangynwyd Middle | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwydarth Road | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwydcoed Road | Llwydcoed | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwydiarth | Rhosllanerchrugog | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llwyfen Street | Park | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn Afanc | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Alun | Hope | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Arian | Margam | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llwyn Arosfa | Sketty | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Bach | Ruabon | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llwyn Bach | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Bedw | Gwernaffield | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Bedw | Pencoed | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Bedw | Cockett | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Berry | Park | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn Beuno | Clynnog | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Beuno | Bontnewydd | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Bleddyn Road | Llanllechid | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Bleddyn Road | Llandygai | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Bleddyn Road | Bethesda | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Brith | Llanrwst | Conwy / Conwy | Conwy / Conwy |
| Llwyn Brwydrau | Llansamlet | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Bryn Melyn | Radyr and Morganstown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Caeriw | Cyfarthfa | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn Castan | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Castan | Pentwyn | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Ceirios | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Celyn | Cwmbran Central | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llwyn Celyn | Llanyre | Powys / Powys | Powys / Powys |
| Llwyn Celyn | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyn Celyn | Cockett | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Close | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyn Clwyd | Shotton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Coch | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Coed | Blackwood | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn Conway | Cyfarthfa | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn Crescent | Oswestry Rural | Shropshire | Shropshire |
| Llwyn David | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llwyn Deri Close | Graig | Casnewydd / Newport | Casnewydd / Newport |
| Llwyn Derw | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Derw | Cockett | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Derwen | Cornelly | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Dic Penderyn | Park | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn Drysgol | Radyr and Morganstown | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Du Road | Eglwysbach | Conwy / Conwy | Conwy / Conwy |
| Llwyn Eglwys | Hope | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Eithin | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Eithin | Van | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn Eithin | Cockett | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Elwy | St. Asaph | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyn Estyn | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llwyn Fields | Oswestry | Shropshire | Shropshire |
| Llwyn Glas | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Goodwood | Leeswood | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Grug | Rhiwbina | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Gwalch | Nefyn | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Gwern | Pencoed | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Gwgan | Llanfairfechan | Conwy / Conwy | Conwy / Conwy |
| Llwyn Gwyn | Llanharry | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyn Harlech | Bodelwyddan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyn Helig | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Helig | Pyle | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Helyg | Tredegar | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Llwyn Helyg | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llwyn Helyg | Cockett | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Hen Road | Gwaun-Cae-Gurwen | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llwyn Isaf | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llwyn Kensington | Acton | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llwyn Llus | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Mallt | Tongwynlais | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Mawr Close | Sketty | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Mawr Road | Cockett | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Mawr Road | Sketty | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Melin | Llanelly | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llwyn Menlli | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyn Meredydd | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyn Mesen | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyn On | Ponthir | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llwyn On | Cornelly | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn On | Cockett | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn On Crescent | Penmaen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn On Lane | Penmaen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn Onn | Rhiwbina | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Onn | Rhos-on-Sea | Conwy / Conwy | Conwy / Conwy |
| Llwyn Onn | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llwyn Onn | Trelawnyd and Gwaenysgor | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Onn | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Onn | Croesyceiliog | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llwyn Onn | Llanharry | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyn Onn | Gelligaer | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn Onn | Hirwaun | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyn Onn | Leeswood | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Onn | Llanfoist Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llwyn Onn | St. Asaph | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyn Onn Lane | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn Passat | Penarth | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llwyn Perthi | Llandrinio | Powys / Powys | Powys / Powys |
| Llwyn Rhedyn | Sketty | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Rhosyn | Rhiwbina | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Rhuthun | Bodelwyddan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyn Road | Clun | Shropshire | Shropshire |
| Llwyn Road | Gwaun-Cae-Gurwen | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llwyn Road | Oswestry | Shropshire | Shropshire |
| Llwyn Santes Tudful | Cyfarthfa | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn Teg | Penderry | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Uchaf | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llwyn Y Bioden | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Y Fuches | Llanllyfni | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Y Gog | Rhoose | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llwyn Y Gog | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Y Golomen | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Y Graig | Penllergaer | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Y Groes | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyn Y Pia Road | Lisvane | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn Y Pwll Close | Brynmawr | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Llwyn Ynn | Dyffryn Ardudwy | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn Yr Eos | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyn Yr Eos | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyn Yr Eos | Bodedern | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llwyn Yr Eos Grove | Town | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn Yr Hebog | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn Yr Iar | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn-crwn Road | Llansamlet | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn-ifor Lane | Whitford | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn-ifor Lane | Mostyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwyn-nant | Gwaun-Cae-Gurwen | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llwyn-on Close | Penyrheol, Trecenydd and Energlyn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn-on Road | Abertillery | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Llwyn-on Road | Penmaen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn-on Street | Penyrheol, Trecenydd and Energlyn | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn-y-bryn | Coedffranc | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llwyn-y-bryn | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyn-y-gadair | Llanfair | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn-y-garth | Llanfyllin | Powys / Powys | Powys / Powys |
| Llwyn-y-gell Road | Ffestiniog | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwyn-y-gelynen | Cyfarthfa | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn-y-gog | Llanfairfechan | Conwy / Conwy | Conwy / Conwy |
| Llwyn-y-grant Place | Roath | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn-y-grant Road | Roath | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn-y-grant Terrace | Roath | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyn-y-mor | Mumbles | Abertawe / Swansea | Abertawe / Swansea |
| Llwyn-y-rhos | Llanrhaeadr-Yng-Nghinmeirch | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llwyn-yr-eos | Troed-y-Rhiw | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn-yr-eos | Nelson | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyn-yr-eos | Town | Merthyr Tudful / Merthyr Tydfil | Merthyr Tudful / Merthyr Tydfil |
| Llwyn-yr-eos | Mynyddbach | Abertawe / Swansea | Abertawe / Swansea |
| Llwynau Lane | Llantrisant Fawr | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llwynbedw | Mountain Ash | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwynbrain Close | Disserth and Trecoed | Powys / Powys | Powys / Powys |
| Llwynbrain Terrace | Llanharan | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncarw | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llwyncelyn | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyncelyn | Mathry | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Llwyncelyn | Garw Valley | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwyncelyn Avenue | Pontardulais | Abertawe / Swansea | Abertawe / Swansea |
| Llwyncelyn Park | Porth | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncelyn Road | Cwmamman | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyncelyn Road | Gwaun-Cae-Gurwen | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llwyncelyn Road | Trehafod | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncelyn Road | Cymmer | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncelyn Road | Cymmer | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncelyn Road | Trehafod | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncelyn Road | Porth | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncelyn Terrace | Nelson | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llwyncelyn Terrace | Tawe-Uchaf | Powys / Powys | Powys / Powys |
| Llwyncethin Road | Cwmbwrla | Abertawe / Swansea | Abertawe / Swansea |
| Llwyncrwn | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyncrwn Road | Llantrisant | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwyncyfarthwch | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwynderi | Pen-y-Waun | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwynderi Road | Allt-yr-Yn | Casnewydd / Newport | Casnewydd / Newport |
| Llwynderw | Llanrhidian Higher | Abertawe / Swansea | Abertawe / Swansea |
| Llwynderw | Llwchwr | Abertawe / Swansea | Abertawe / Swansea |
| Llwynderw Avenue | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llwynderw Close | Mumbles | Abertawe / Swansea | Abertawe / Swansea |
| Llwynderw Drive | Mumbles | Abertawe / Swansea | Abertawe / Swansea |
| Llwynderw Road | Whitchurch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwyndu Road | Llanllyfni | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llwynfedw Gardens | Heath | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwynfedw Road | Heath | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llwynfen Road | Pont-y-Clun | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwynhendy Road | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwynhendy Road | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llwyni Drive | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwynmadoc Street | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwynmawr Lane | Gowerton | Abertawe / Swansea | Abertawe / Swansea |
| Llwynn-y-coed | Leeswood | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwynon | Clydach | Abertawe / Swansea | Abertawe / Swansea |
| Llwynon Close | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llwynon Gardens | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llwynon Lane | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llwynon Road | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llwynu Lane | Abergavenny | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llwynu Lane | Llantilio Pertholey | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llwynu Road | Abergavenny | Sir Fynwy / Monmouthshire | Sir Fynwy / Monmouthshire |
| Llwynypia Road | Llwyn-y-Pia | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwynypia Road | Tonypandy | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llwynypia Road | Llwyn-y-Pia | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Lly's Meirion | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llygad-y Ffynnon | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llygad-yr-haul | Pembrey and Burry Port Town | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llygad-yr-haul | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llygad-yr-haul | Llangunnor | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llygad-yr-haul | Glynneath | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llyn Berwyn Close | Rogerstone | Casnewydd / Newport | Casnewydd / Newport |
| Llyn Brics | Amlwch | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llyn Celyn Close | Rogerstone | Casnewydd / Newport | Casnewydd / Newport |
| Llyn Close | Cyncoed | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llyn Pandy | Bedwas, Trethomas and Machen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llyn Tircoed | Pont-Lliw | Abertawe / Swansea | Abertawe / Swansea |
| Llyn Y Fran | Llandysul | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llynallan Road | Benhar | North Lanarkshire | North Lanarkshire |
| Llyndir Lane | Rossett | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llynfa Road | Llanrhidian Higher | Abertawe / Swansea | Abertawe / Swansea |
| Llynfi Court | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llynfi Lane | Bridgend | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llynfi Lane | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llynfi Road | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llynfi Street | Bridgend | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llynfi Street | Ynysawdre | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llynlloedd Lane | Machynlleth | Powys / Powys | Powys / Powys |
| Llys | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Abbeyville | Sandfields East | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Acasia | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Aderyn Du | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Ael-y-bryn | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys Afallen | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Afallon | Kidwelly | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Alafowlia | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Alarch | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Alarch | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Alaw | Trealaw | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Aled | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Alexandra | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Alun | Cilcain | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Alun | St. Asaph | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Alwen | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Alyn | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Alyn | Gwersyllt | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Alys | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Ambrose | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Andrew | Coedffranc | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Aneirin | Llwchwr | Abertawe / Swansea | Abertawe / Swansea |
| Llys Ann | Leeswood | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Argoed | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Argoed | Colwyn Bay | Conwy / Conwy | Conwy / Conwy |
| Llys Armon | Ysceifiog | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Arthur | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Arthur | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Ashburnham | Pembrey and Burry Port Town | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Avenue | Oswestry | Shropshire | Shropshire |
| Llys Bala | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Baldwin | Gowerton | Abertawe / Swansea | Abertawe / Swansea |
| Llys Bedw | Leeswood | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Bedw | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Bedwen | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Ben | Northop Hall | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Berllan | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Bethesda | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Bodlondeb | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llys Bodnant | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Bowen | Bodelwyddan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Bran | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Branwen | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Breiden | Llandysilio | Powys / Powys | Powys / Powys |
| Llys Brenig | Hawarden | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Brenig | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Briallen | Brackla | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Brierley | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llys Brompton | Rhos-on-Sea | Conwy / Conwy | Conwy / Conwy |
| Llys Bronallt | Llanedi | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Bronwydd | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Bryn Gwyrdd | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Bryngolwg | Llandinam | Powys / Powys | Powys / Powys |
| Llys Brynteg | Gorseinon | Abertawe / Swansea | Abertawe / Swansea |
| Llys Bychan | Holywell | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Cadnant | Broughton and Bretton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Cadnant | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Cadwaladr | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Cae'r Glo | Northop | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Caer | Broughton and Bretton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Caermedi | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Cain | Llanfyllin | Powys / Powys | Powys / Powys |
| Llys Cambria | Llanbradach and Pwllypant | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys Caradoc | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Caradog | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Caradog | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Caradog | Trefnant | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Castell | Margam | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Catrin | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Catrin | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Catwg | Llantrisant | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Catwg | Glynneath | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Ceibren | Shotton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Ceirios | Trefnant | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Celyn | Hawarden | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Celyn | Leeswood | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Celyn | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Cennech | Llangennech | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Cerddin | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Cerrig | Trefnant | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Charles | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Cilsaig | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Claerwen | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Close | Oswestry | Shropshire | Shropshire |
| Llys Clwyd | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Clwyd | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Clwyd | Penmaenmawr | Conwy / Conwy | Conwy / Conwy |
| Llys Clwyd | St. Asaph | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Clywedog | Llanidloes | Powys / Powys | Powys / Powys |
| Llys Coed | Ynysybwl and Coed-y-Cwm | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Coed Derw | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Coed Derw | Clydach | Abertawe / Swansea | Abertawe / Swansea |
| Llys Colomen | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Conwy | Faenor | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llys Conwy | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Corrwg | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Court | Oswestry | Shropshire | Shropshire |
| Llys Cowlyd | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Cregyn | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Cwstenin | Mochdre | Conwy / Conwy | Conwy / Conwy |
| Llys Cwyr | Upper Killay | Abertawe / Swansea | Abertawe / Swansea |
| Llys Cynan | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Cyncoed | Penmaen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys Cynffig | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Cynon | Hirwaun | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Dafydd | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Daniel Owen | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys David Lord | Offa | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Dedwydd | Rhos-on-Sea | Conwy / Conwy | Conwy / Conwy |
| Llys Dedwydd | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Dedwydd | Halkyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Dedwydd | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Degwm | Treuddyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Delyn | Holywell | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Delyn | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Deri | Llanharry | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Derw | Newcastle Emlyn | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Derw | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Derw | Rhosllanerchrugog | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Derwen | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Derwen | Ynysybwl and Coed-y-Cwm | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Derwen | Llantrisant | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Derwen | New Quay | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llys Derwen | Higher Kinnerton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Dewi | Llanasa | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Dewi | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Dewi | Llantwit Major | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llys Dewi | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Dewi Sant | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Dewi Sant | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Dewi Sant | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Dinas | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Dol | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llys Dolhaiarn | Llanfair Talhaiarn | Conwy / Conwy | Conwy / Conwy |
| Llys Dulais | Crynant | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Dulas | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Dulyn | Caerhun | Conwy / Conwy | Conwy / Conwy |
| Llys Dur | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llys Dwfnant | Clyne and Melincourt | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Dwrgi | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys Dwynwen | Llantwit Major | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llys Dyffryn | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Dyffryn | St. Asaph | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Dyffryn Dyfrdwy | Cefn | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Dyfodwg | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Dyfrig | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Eboni | Hawarden | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Edmund Prys | Bodelwyddan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Ednyfed | Mochdre | Conwy / Conwy | Conwy / Conwy |
| Llys Edward | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Eglwys | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Eglwys | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Eglwys | Holywell | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Egwad | Llanegwad | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Eirlys | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Eithin | Gorslas | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Eithin | Northop Hall | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Elba | Gowerton | Abertawe / Swansea | Abertawe / Swansea |
| Llys Elinor | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Emlyn | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Emrys | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Enfys | Halkyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Enfys | Gwernymynydd | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Eos | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Erw | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Fach | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Faen | Bridgend | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Famau | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Fammau | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Fammau | Gwernaffield | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Fammau | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Felin | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Felin Newydd | Llansamlet | Abertawe / Swansea | Abertawe / Swansea |
| Llys Ffynnon | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Fran | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Garth | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Ger Y Llan | Pontardulais | Abertawe / Swansea | Abertawe / Swansea |
| Llys Glanrafon | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Glanrafon | Pontardawe | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Glyndwr | Machynlleth | Powys / Powys | Powys / Powys |
| Llys Glyndwr | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Golygfa' R Maes | Penyffordd | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Gwenci | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys Gwenllian | Kidwelly | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Gwennol | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Gwent | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llys Gwernen | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llys Gwil Ym | Ynysybwl and Coed-y-Cwm | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Gwilym | Llanrhaeadr-Yng-Nghinmeirch | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Gwyddfid | Treuddyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Gwylan | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Gwylym | Llanfaelog | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llys Gwyn | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llys Gwyn | Maesteg | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Gwyn | Coity Higher | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Gwyn | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Gwynant | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Gwynant | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Gwyndyr | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Gwynfaen | Gorseinon | Abertawe / Swansea | Abertawe / Swansea |
| Llys Gwynfryn | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Gwynno | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Gwyrdd | Henllys | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llys Gwyrdd | Broughton | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Hafn | Taffs Well | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Hanner Erw | Caerphilly | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys Hebog | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys Heidog | Leeswood | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Helig | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llys Helig Drive | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llys Helyg | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Helyg | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Hendre | Llangennech | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Hendre | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Herbert | Kerry | Powys / Powys | Powys / Powys |
| Llys Heulog | Llandrindod Wells | Powys / Powys | Powys / Powys |
| Llys Holcwm | St. Ishmael | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Idris | St. Asaph | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Ifor | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Illtyd | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Iris | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Jernegan | Castle | Abertawe / Swansea | Abertawe / Swansea |
| Llys Joseph | Llanharry | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Lane | Oswestry | Shropshire | Shropshire |
| Llys Lelog | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Llanfair | Llandovery | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Llannerch | Trefnant | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Llewelyn | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Llwyfen | Llansamlet | Abertawe / Swansea | Abertawe / Swansea |
| Llys Llydaw | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Llywelyn | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Llywelyn | Nefyn | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Madoc | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Maelgwn | Llandudno | Conwy / Conwy | Conwy / Conwy |
| Llys Maes Ucha | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Maesteg | Bagillt | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Mai | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Mair | Pembrey and Burry Port Town | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Mair | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Marl | Upper Cwmbran | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llys Marni | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llys Meillion | Bronllys | Powys / Powys | Powys / Powys |
| Llys Melyn | Tregynon | Powys / Powys | Powys / Powys |
| Llys Menden | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Meredith | Cefn | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Mervyn | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Miaren | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Morfa | Pontardulais | Abertawe / Swansea | Abertawe / Swansea |
| Llys Mymbr | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Mynach | Faenor | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llys Nant | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Nant Fer | Gwaun-Cae-Gurwen | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Nant Pandy | Caerphilly | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys Nant Y Clais | Cwmavon | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Nant Yr Aber | Caerphilly | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys Nedd | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Nercwys | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Ogwen | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Onnen | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llys Onnen | Ebbw Vale | Blaenau Gwent / Blaenau Gwent | Blaenau Gwent / Blaenau Gwent |
| Llys Owain | Dolgellau | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Owain | Llay | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Owen | Cardigan | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llys Owen | Fishguard and Goodwick | Sir Benfro / Pembrokeshire | Sir Benfro / Pembrokeshire |
| Llys Owen | Llanasa | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Pabi | Neath | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Padarn | Hawarden | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Padarn | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Padeswood | Buckley | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Pant Derw | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Pen-y-ffordd | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Pen-y-glyn | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Pencrug | Llandeilo | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Pendderi | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Pendefig | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Penpant | Llangyfelach | Abertawe / Swansea | Abertawe / Swansea |
| Llys Pentre | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Pentre Isaf | Old Colwyn | Conwy / Conwy | Conwy / Conwy |
| Llys Penuel | Rhosllanerchrugog | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Perenna | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Peris | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Picton | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Pont Y Garreg | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Pont-y-felin | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Preswylfa | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Pum Cyfair | Llandaff North | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Rafelston | Llannon | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Rhaedr | Ystalyfera | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Rhedyn | Coedpoeth | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Rhufain | Caersws | Powys / Powys | Powys / Powys |
| Llys Road | Oswestry | Shropshire | Shropshire |
| Llys Robin Goch | Rhuddlan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Royston | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Sambrook | Penmaenmawr | Conwy / Conwy | Conwy / Conwy |
| Llys Sant Iago | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Sant Teilo | Llangyfelach | Abertawe / Swansea | Abertawe / Swansea |
| Llys Seion | Gorslas | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Siabod | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Siandler | Connah's Quay | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Sion | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Steffan | Llantwit Major | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llys Suren | Hawarden | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Sycamorwydden | Baglan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Sychnant | Conwy | Conwy / Conwy | Conwy / Conwy |
| Llys Taf | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Tal-y-bont Road | Gabalfa | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Tawel | Ystradgynlais | Powys / Powys | Powys / Powys |
| Llys Teg | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Teg | Trefnant | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Tegeirian | Llangristiolus | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llys Tegid | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Teilo | Llantwit Major | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llys Teilo | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Tomas Sant | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Trahearne | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Trefor Jones | Llysfaen | Conwy / Conwy | Conwy / Conwy |
| Llys Tregarnedd | Llangefni | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llys Treseifon | Holyhead | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llys Trewithan | St. Asaph | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Tripp | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Tryfan | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Tudela | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Tudful | Pentyrch | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llys Tudor | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Tudur | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Tudur | Bangor | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Tudur | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Ty Gwyn | Pontypridd | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Tynewydd | Coity Higher | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Tysant | Coity Higher | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys Tywi | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Vyrnwy | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Vyrnwy | Prestatyn | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Warner | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Wenallt | Tonna | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Wern | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Westfa | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Wylfa | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Wynnes Parc | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Y Brenin | Whitland | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Brenin | Llwchwr | Abertawe / Swansea | Abertawe / Swansea |
| Llys Y Brenin | Presteigne | Powys / Powys | Powys / Powys |
| Llys Y Bugail | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Castell | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys Y Coed | Llandrillo | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Y Coed | Gelligaer | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys Y Coed | Barry | Bro Morgannwg / the Vale of Glamorgan | Bro Morgannwg / The Vale of Glamorgan |
| Llys Y Coed | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Y Craig | Argoed | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Y Crofft | Whitland | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Dderwen | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Dderwen | Llangennech | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Ddraenog | Margam | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Y Drindod | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Faenol | Broughton and Bretton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Y Farchnad | Gowerton | Abertawe / Swansea | Abertawe / Swansea |
| Llys Y Felin | Llangennech | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Felin | Llanedi | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Felin | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Felin | St. Clears | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Felin | Flint | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Y Foel | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Y Foel | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Y Foel | Dyserth | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Y Fran | Llantwit Fardre | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys Y Gamog | Denbigh | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Y Garn | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Y Garnedd | Pentir | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Y Gof | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Goppa | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llys Y Graig | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llys Y Meddyg | Bodedern | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llys Y Morwr | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Mynydd | Trimsaran | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Nant | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Nant | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Nant | Broughton and Bretton | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Y Porthmyn | Llandovery | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Y Rhos | Llangristiolus | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llys Y Wennol | Henllan | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Y Wennol | Northop Hall | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Y Wern | Treuddyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Ynyscedwyn | Ystradgynlais | Powys / Powys | Powys / Powys |
| Llys Yr Afon | Ystalyfera | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys Yr Ardd | Morriston | Abertawe / Swansea | Abertawe / Swansea |
| Llys Yr Efail | Machynlleth | Powys / Powys | Powys / Powys |
| Llys Yr Eifl | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Yr Engan | Bodedern | Sir Ynys Mon / Isle of Anglesey | Sir Ynys Mon / Isle of Anglesey |
| Llys Yr Erwain | Trefnant | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys Yr Haul | Cilcain | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys Yr Hebog | Newtown and Llanllwchaiarn | Powys / Powys | Powys / Powys |
| Llys Yr Hen Felin | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Yr Hen Ysgol | Ruabon | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Yr Onnen | Llanelli Rural | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Yr Orsaf | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys Yr Orsaf | Gwersyllt | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys Yr Orsaf | Llanfyllin | Powys / Powys | Powys / Powys |
| Llys Yr Orsedd | Caernarfon | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Yr Waun | Waunfawr | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys Yr Ysgol | Llandybie | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys-gwyn Terrace | Pontardulais | Abertawe / Swansea | Abertawe / Swansea |
| Llys-le-breos | Mumbles | Abertawe / Swansea | Abertawe / Swansea |
| Llys-teg | Dunvant | Abertawe / Swansea | Abertawe / Swansea |
| Llys-uchaf | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys-y-barcty | Llangollen | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys-y-berllan | Holywell | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-berllan | Ruthin | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys-y-bioden | Llanrwst | Conwy / Conwy | Conwy / Conwy |
| Llys-y-bryn | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys-y-bryn | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys-y-celyn | Van | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys-y-coed | Cwmbach | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llys-y-coed | Pembrey and Burry Port Town | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys-y-coed | Blaenhonddan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys-y-coed | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys-y-dderwen | Betws Yn Rhos | Conwy / Conwy | Conwy / Conwy |
| Llys-y-deri | Ammanford | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys-y-fedwen | Van | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llys-y-felin | Cwmbwrla | Abertawe / Swansea | Abertawe / Swansea |
| Llys-y-ferin | Llanegwad | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys-y-fran | Laleston | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llys-y-fron | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-gerddi | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys-y-goron | Caerwys | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-gwynt | Llanddeiniolen | Gwynedd / Gwynedd | Gwynedd / Gwynedd |
| Llys-y-llyfrgell | Pembrey and Burry Port Town | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llys-y-marchog | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llys-y-mor | Whitford | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-mor | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llys-y-nant | Halkyn | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-nant | Clydach | Abertawe / Swansea | Abertawe / Swansea |
| Llys-y-nant | Neath | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |
| Llys-y-nant | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-pant | Rhosllanerchrugog | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llys-y-pentre | Caerwys | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-siglen | Llanrwst | Conwy / Conwy | Conwy / Conwy |
| Llys-y-tywysog | Tremeirchion | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys-y-tywysog | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llys-y-waun | Birchgrove | Abertawe / Swansea | Abertawe / Swansea |
| Llys-y-wennol | Llanrwst | Conwy / Conwy | Conwy / Conwy |
| Llys-y-wern | Northop | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-y-wylan | Llanrwst | Conwy / Conwy | Conwy / Conwy |
| Llys-yr-awel | Mold | Sir y Fflint / Flintshire | Sir Y Fflint / Flintshire |
| Llys-yr-eos | Abergele | Conwy / Conwy | Conwy / Conwy |
| Llys-yr-wyddfa | Rhyl | Sir Ddinbych / Denbighshire | Sir Ddinbych / Denbighshire |
| Llysfaen Avenue | Kinmel Bay and Towyn | Conwy / Conwy | Conwy / Conwy |
| Llysfaen Road | Old Colwyn | Conwy / Conwy | Conwy / Conwy |
| Llysfaen Road | Llysfaen | Conwy / Conwy | Conwy / Conwy |
| Llysfaen Station Road | Llysfaen | Conwy / Conwy | Conwy / Conwy |
| Llysgwyn | Llangyfelach | Abertawe / Swansea | Abertawe / Swansea |
| Llyshendre | Faenor | Sir Ceredigion / Ceredigion | Sir Ceredigion / Ceredigion |
| Llysmorfa | Llangunnor | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llysnewydd | Llanelli | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llysonen Road | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llysonen Road | Carmarthen | Sir Gaerfyrddin / Carmarthenshire | Sir Gaerfyrddin / Carmarthenshire |
| Llyswen | Gelligaer | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llyswen | Bedwas, Trethomas and Machen | Caerffili / Caerphilly | Caerffili / Caerphilly |
| Llyswen | Pen-y-Waun | Rhondda Cynon Taf / Rhondda Cynon Taf | Rhondda Cynon Taf / Rhondda Cynon Taf |
| Llyswen Lane | Guilsfield | Powys / Powys | Powys / Powys |
| Llyswen Road | Cyncoed | Caerdydd / Cardiff | Caerdydd / Cardiff |
| Llysy Coed | Rhosddu | Wrecsam / Wrexham | Wrecsam / Wrexham |
| Llythrid Avenue | Sketty | Abertawe / Swansea | Abertawe / Swansea |
| Llythrid Avenue | Uplands | Abertawe / Swansea | Abertawe / Swansea |
| Llywelyn Road | Cwmbran Central | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llywelyn Road | Cwmbran Central | Tor-faen / Torfaen | Tor-faen / Torfaen |
| Llywelyn Street | Ogmore Valley | Pen-y-bont ar Ogwr / Bridgend | Pen-y-bont Ar Ogwr / Bridgend |
| Llywn Helyg | Baglan | Castell-nedd Port Talbot / Neath Port Talbot | Castell-nedd Port Talbot / Neath Port Talbot |