View source for List of standardised Welsh place-names in Gwynedd

{{Short description|none}}
[[File:Wales Gwynedd locator map.svg|thumb|125px|Location of the modern county of Gwynedd in Wales.]]
The [[list of standardised Welsh place-names]], for places in [[Gwynedd]], is a list compiled by the [[Welsh Language Commissioner]] to recommend the standardisation of the spelling of [[Welsh place-names]], particularly in the [[Welsh language]] and when multiple forms are used, although some place-names in [[English language|English]] were also recommended to be matched with the Welsh. The list contains 317 entries, as of November 2023.
<!-- not LEAD -->The list is based on recommendations provided by the Place-names Standardisation Panel, convened by the Commissioner, for expert advice on the standardisation of Welsh place-names. The panel bases their decisions on a set of guidelines (currently dating to June 2023), specific to [[Lists of places in Wales|Welsh settlement]] names (such as those of villages, [[List of towns in Wales|towns]], and [[List of cities in Wales|cities]]) and topographic features (such as [[List of lakes of Wales|lakes]], mountains and [[List of rivers of Wales|rivers]]). The panel does not cover house or building names, although similar principles could be applied to them or to names for new developments (for which the Commissioner offers their own advice to [[Local authorities in Wales|local authorities]] and [[Housing and construction in Wales|housing developers]]).<ref name=":Tech">{{Cite web |title=Technical guidance |url=https://www.welshlanguagecommissioner.wales/policy-and-research/welsh-place-names/technical-guidance |access-date=2023-11-18 |website=www.welshlanguagecommissioner.wales |language=en-GB}}</ref> The panel may also have used additional guidelines.<ref name=":Guideline">{{Cite web |date=19 June 2023 |title=Guidelines for Standardising Place-names in Wales |url=https://www.welshlanguagecommissioner.wales/media/d0fbot5r/20230616-dg-s-guidelines-for-standardising.pdf |publisher=[[Welsh Language Commissioner]]}}</ref>
The list was first published in 2018,<ref name="Published">{{Cite web |last=School |first=Dr Dylan Foster Evans Head of |title=Definitive list of Welsh place names published |url=https://www.cardiff.ac.uk/news/view/1217211-definitive-list-of-welsh-place-names-published |access-date=2023-11-18 |website=Cardiff University |language=en}}</ref> and took years to put together.<ref name=":Published 2">{{Cite news |date=2018-06-20 |title=Welsh Language Commissioner unveils place name list |language=en-GB |work=BBC News |url=https://www.bbc.com/news/44545460 |access-date=2023-11-18}}</ref> Upon creation, these lists were published under the [[Open Government Licence]] 3.0.<ref name="Licence">{{Cite web |date=2023-11-06 |title=Other resources: Place-names in Wales {{!}} GOV.WALES |url=https://www.gov.wales/bydtermcymru/place-names-wales |access-date=2023-11-18 |website=www.gov.wales |language=en}}</ref><ref>{{Cite web |title=Welsh Place Names |url=https://www.welshlanguagecommissioner.wales/policy-and-research/welsh-place-names |access-date=2023-11-18 |website=www.welshlanguagecommissioner.wales |language=en-GB}}</ref>
The Welsh name change of [[Barmouth]], from Abermaw / Y Bermo to Abermo was criticised by a local historian in 2018,<ref>{{Cite web |date=2018-07-12 |title=Town’s Welsh name disputed |url=https://www.cambrian-news.co.uk/news/towns-welsh-name-disputed-100821 |access-date=2023-11-18 |website=Cambrian News}}</ref> in the November 2023 list, it seems to have been replaced with Y Bermo in Welsh.
==List==
{| class="wikitable sortable"
! colspan="2" |Recommended standardised names
! rowspan="2" |Other name/spelling not recommended
! rowspan="2" |Type
! rowspan="2" |Grid reference
|-
! Welsh !! English
|-
| Aberangell || [[Aberangell]]
| || Settlement || SH8410
|-
| Abercywarch || Abercywarch
|[[Aber-Cywarch]]|| Settlement || SH8615
|-
| Aberdaron || [[Aberdaron]]
| || Settlement || SH1726
|-
| Aberdesach || [[Aberdesach]]
| || Settlement || SH4251
|-
| Aberdyfi || [[Aberdyfi]]
| || Settlement || SN6196
|-
| Aber-erch || Aber-erch
|[[Abererch]]|| Settlement || SH3936
|-
| Abergeirw || [[Abergeirw]]
| || Settlement || SH7629
|-
| Aberglaslyn || [[Aberglaslyn]]
| || Man-made feature || SH5946
|-
| Abergwyngregyn || [[Abergwyngregyn]]
| || Settlement || SH6572
|-
| Abergynolwyn || [[Abergynolwyn]]
| || Settlement || SH6706
|-
| Aberllefenni || [[Aberllefenni]]
| || Settlement || SH7709
|-
| Aber-pwll || Aber-pwll
| || Area || SH5368
|-
| Abersoch || [[Abersoch]]
| || Settlement || SH3128
|-
| Abertrinant || [[Abertrinant]]
| || Settlement || SH6405
|-
| Afon-wen || Afon-wen
|[[Afon Wen]]|| Settlement || SH4437
|-
| Anelog || [[Anelog]]
| || Settlement || SH1527
|-
| Arthog || [[Arthog]]
| || Settlement || SH6414
|-
| Y Bala || Y Bala
|[[Bala, Gwynedd|Bala]]|| Settlement || SH9236
|-
| Bangor || [[Bangor, Gwynedd|Bangor]]
| || Settlement || SH5771
|-
| Bangor Uchaf || [[Upper Bangor]]
| || Settlement || SH5772
|-
| Beddgelert || [[Beddgelert]]
| || Settlement || SH5948
|-
| Bethania || [[Bethania, Gwynedd|Bethania]]
| || Settlement || SH7045
|-
| Bethel || [[Bethel, Gwynedd|Bethel]]
| || Settlement || SH5265
|-
| Bethel || Bethel
| || Settlement || SH9839
|-
| Bethesda || [[Bethesda, Gwynedd|Bethesda]]
| || Settlement || SH6266
|-
| Bethesda Bach || Bethesda Bach
| || Settlement || SH4656
|-
| Betws Garmon || [[Betws Garmon]]
| || Settlement || SH5357
|-
| Blaen Nanmor || Blaen Nanmor
| || Area || SH6348
|-
| Blaenau Ffestiniog || [[Blaenau Ffestiniog]]
| || Settlement || SH7045
|-
| Boduan || [[Boduan]]
| || Settlement || SH3237
|-
| Y Bont-ddu || Y Bont-ddu
|[[Bontddu]]|| Settlement || SH6618
|-
| Y Bontnewydd || Y Bontnewydd
|[[Bontnewydd, Gwynedd|Bontnewydd]]|| Settlement || SH4859
|-
| Y Bontnewydd || Y Bontnewydd
| || Area || SH7720
|-
| Borth-y-Gest || [[Borth-y-Gest]]
| || Settlement || SH5637
|-
| Botwnnog || [[Botwnnog]]
| || Settlement || SH2631
|-
| Braichmelyn || [[Braichmelyn]]
| || Area || SH6265
|-
| Braichtalog || Braichtalog
| || Settlement || SH6067
|-
| Brithdir || [[Brithdir, Gwynedd|Brithdir]]
| || Area || SH7618
|-
| Bronaber || [[Bronaber]]
| || Settlement || SH7131
|-
| Bron-y-môr || Bron-y-môr
| || Area || SH5700
|-
| Brynbwbach || Brynbwbach
| || Settlement || SH6236
|-
| Bryncir || Bryncir
|Brynkir|| Settlement || SH4844
|-
| Bryncoedifor || Bryncoedifor
| || Settlement || SH7920
|-
| Bryncroes || [[Bryncroes]]
| || Settlement || SH2231
|-
| Bryn-crug || Bryn-crug
|[[Bryncrug]]|| Settlement || SH6003
|-
| Bryneglwys || Bryneglwys
|[[Bryn Eglwys quarry|Bryn Eglwys]]|| Settlement || SH6066
|-
| Bryn-llwyd || Bryn-llwyd
| || Area || SH5670
|-
| Bryn-mawr || Bryn-mawr
| || Area || SH4243
|-
| Brynrefail || [[Brynrefail, Gwynedd|Brynrefail]]
| || Settlement || SH5562
|-
| Bwlchderwin || Bwlchderwin
| || Settlement || SH4546
|-
| Bwlchtocyn || Bwlchtocyn
| || Settlement || SH3126
|-
| Bwlch-y-llyn || Bwlch-y-llyn
| || Settlement || SH5055
|-
| Caeathro || [[Caeathro]]
| || Settlement || SH5061
|-
| Cae-clyd || Cae-clyd
|[[Cae Clyd]]|| Settlement || SH7144
|-
| Caerdeon || Caerdeon
| || Area || SH6518
|-
| Caerhun || Caerhun
| || Settlement || SH5769
|-
| Caernarfon || [[Caernarfon]]
| || Settlement || SH4862
|-
| Caletwr || Caletwr
| || Area || SH9734
|-
| Camlan || Camlan
| || Area || SH8511
|-
| Capel Uchaf || Capel Uchaf
| || Settlement || SH4349
|-
| Carmel || [[Carmel, Gwynedd|Carmel]]
| || Settlement || SH4954
|-
| Carreg-y-gath || Carreg-y-gath
| || Settlement || SH5865
|-
| Cefnddwygraig || Cefnddwygraig
| || Area || SH9233
|-
| Cefnddwysarn || [[Cefnddwysarn]]
| || Settlement || SH9638
|-
| Ceidio || [[Ceidio]]
| || Man-made feature || SH2837
|-
| Cennin || Cennin
| || Settlement || SH4644
|-
| Ceunant || Ceunant
| || Area || SH5361
|-
| Chwilog || [[Chwilog]]
| || Settlement || SH4338
|-
| Cilan || Cilan
| || Settlement || SH2924
|-
| Cilfodan || Cilfodan
| || Area || SH6266
|-
| Cilgwyn || [[Cilgwyn quarry|Cilgwyn]]
| || Area || SH4954
|-
| Ciltalgarth || Ciltalgarth
| || Area || SH8840
|-
| Clwt-y-bont || [[Clwt-y-bont]]
| || Settlement || SH5762
|-
| Clynnog Fawr || [[Clynnog Fawr]]
| || Settlement || SH4149
|-
| Coed-mawr || Coed-mawr
| || Settlement || SH5670
|-
| Coed-y-parc || Coed-y-parc
| || Settlement || SH6166
|-
| Coedystumgwern || Coedystumgwern
| || Settlement || SH5823
|-
| Congl-y-wal || Congl-y-wal
| || Settlement || SH7044
|-
| Corris || [[Corris]]
| || Settlement || SH7507
|-
| Corris Uchaf || [[Corris Uchaf]]
| || Settlement || SH7408
|-
| Cricieth || Cricieth
|[[Criccieth]]|| Settlement || SH5038
|-
| Croesor || [[Croesor]]
| || Settlement || SH6344
|-
| Croes-y-waun || Croes-y-waun
| || Settlement || SH5259
|-
| Cutiau || Cutiau
| || Settlement || SH6317
|-
| Cwmcewydd || Cwmcewydd
| || Settlement || SH8713
|-
| Cwm-y-glo || [[Cwm-y-glo]]
| || Settlement || SH5562
|-
| Cwrt || Cwrt
| || Settlement || SH6800
|-
| Cywarch || [[Cywarch]]
| || Area || SH8518
|-
| Deiniolen || [[Deiniolen]]
| || Settlement || SH5763
|-
| Dinas || Dinas
| || Settlement || SH2636
|-
| Dinas || [[Dinas, Gwynedd|Dinas]]
| || Settlement || SH4858
|-
| Dinas Dinlle || [[Dinas Dinlle]]
| || Settlement || SH4356
|-
| Dinas Mawddwy || [[Dinas Mawddwy]]
| || Settlement || SH8514
|-
| Dinorwig || [[Dinorwig]]
| || Settlement || SH5961
|-
| Dolbenmaen || [[Dolbenmaen]]
| || Settlement || SH5043
|-
| Dolgellau || [[Dolgellau]]
| || Settlement || SH7217
|-
| Dôl-goch || Dôl-goch
|[[Dolgoch quarry, Gwynedd|Dolgoch]]|| Settlement || SH6504
|-
| Dolhendre || Dolhendre
| || Area || SH8531
|-
| Dôl-y-cae || Dôl-y-cae
| || Area || SH7211
|-
| Dolydd || Dolydd
| || Settlement || SH4757
|-
| Drws-y-coed || Drws-y-coed
| || Area || SH5453
|-
| Dyffryn || Dyffryn
| || Settlement || SH5823
|-
| Dyffryn Ardudwy || [[Dyffryn Ardudwy]]
| || Settlement || SH5823
|-
| Edern || [[Edern, Gwynedd|Edern]]
| || Settlement || SH2739
|-
| Efailnewydd || [[Efailnewydd]]
| || Settlement || SH3535
|-
| Eisingrug || [[Eisingrug]]
| || Settlement || SH6134
|-
| Y Fach-wen || Y Fach-wen
| || Settlement || SH5761
|-
| Fairbourne || [[Fairbourne]]
| || Settlement || SH6113
|-
| Y Felinheli || [[Y Felinheli]]
| || Settlement || SH5267
|-
| Felin-hen || Felin-hen
|Felin Hen|| Settlement || SH5868
|-
| Y Ffôr || [[Y Ffôr]]
| || Settlement || SH3938
|-
| Y Friog || Y Friog
|[[Friog]]|| Settlement || SH6112
|-
| Y Fron || [[Y Fron]]
| || Settlement || SH5154
|-
| Fron-goch || Fron-goch
|[[Frongoch]]|| Settlement || SH9039
|-
| Gallt-y-foel || Gallt-y-foel
| || Settlement || SH5862
|-
| Y Ganllwyd || Y Ganllwyd
|[[Ganllwyd]]|| Settlement || SH7224
|-
| Garndolbenmaen || [[Garndolbenmaen]]
| || Settlement || SH4944
|-
| Garnfadrun || Garnfadrun
|[[Carn Fadryn]]|| Settlement || SH2834
|-
| Garreg || Garreg
| || Settlement || SH6141
|-
| Garth || Garth
| || Area || SH5873
|-
| Gellilydan || [[Gellilydan]]
| || Settlement || SH6839
|-
| Gerlan || Gerlan
| || Settlement || SH6366
|-
| Glan Dwyfach || Glan Dwyfach
| || Area || SH4843
|-
| Glanadda || Glanadda
| || Settlement || SH5770
|-
| Glan-y-pwll || Glan-y-pwll
| || Settlement || SH6946
|-
| Glanyrafon || Glanyrafon
|[[Glan-yr-afon, Gwynedd|Glan-yr-afon]]|| Settlement || SJ0242
|-
| Glan-y-wern || Glan-y-wern
| || Settlement || SH6034
|-
| Glasinfryn || [[Glasinfryn]]
| || Settlement || SH5868
|-
| Glynllifon || [[Glynllifon]]
| || Man-made feature || SH4555
|-
| Golan || Golan
| || Settlement || SH5242
|-
| Groesffordd || Groesffordd
| || Settlement || SH2739
|-
| Y Groeslon || Y Groeslon
|[[Groeslon]]|| Settlement || SH4755
|-
| Gwastadnant || Gwastadnant
| || Settlement || SH6157
|-
| Gwastadros || Gwastadros
| || Area || SH8835
|-
| Gwydir || Gwydir
| || Man-made feature || SH7961
|-
| Gyrn Goch || Gyrn Goch
| || Topographical feature || SH4047
|-
| Harlech || [[Harlech]]
| || Settlement || SH5831
|-
| Hen-barc || Hen-barc
| || Area || SH6267
|-
| Hirael || Hirael
| || Settlement || SH5872
|-
| Islaw'r-dref || Islaw'r-dref
| || Area || SH6815
|-
| Llan Ffestiniog || [[Llan Ffestiniog]]
| || Settlement || SH7041
|-
| Llanaber || [[Llanaber]]
| || Settlement || SH6017
|-
| Llanaelhaearn || [[Llanaelhaearn]]
| || Settlement || SH3844
|-
| Llanarmon || [[Llanarmon, Gwynedd|Llanarmon]]
| || Settlement || SH4239
|-
| Llanbedr || [[Llanbedr]]
| || Settlement || SH5826
|-
| Llanbedrog || [[Llanbedrog]]
| || Settlement || SH3231
|-
| Llanberis || [[Llanberis]]
| || Settlement || SH5760
|-
| Llandanwg || [[Llandanwg]]
| || Settlement || SH5628
|-
| Llanddeiniolen || [[Llanddeiniolen]]
| || Settlement || SH5466
|-
| Llandderfel || [[Llandderfel]]
| || Settlement || SH9837
|-
| Llandecwyn || [[Llandecwyn]]
| || Settlement || SH6337
|-
| Llandwrog || [[Llandwrog]]
| || Settlement || SH4556
|-
| Llandygái || Llandygái
|[[Llandygai]]|| Settlement || SH5970
|-
| Llanegryn || [[Llanegryn]]
| || Settlement || SH6005
|-
| Llanelltud || Llanelltud
|[[Llanelltyd]]|| Settlement || SH7119
|-
| Llanenddwyn || Llanenddwyn
| || Settlement || SH5723
|-
| Llanengan || [[Llanengan]]
| || Settlement || SH2926
|-
| Llanfachreth || [[Llanfachreth]]
| || Settlement || SH7522
|-
| Llanfaglan || [[Llanfaglan]]
| || Settlement || SH4760
|-
| Llanfair || [[Llanfair, Gwynedd|Llanfair]]
| || Settlement || SH5729
|-
| Llanfihangel-y-Pennant || [[Llanfihangel-y-Pennant, Dolbenmaen|Llanfihangel-y-Pennant]]
| || Settlement || SH5244
|-
| Llanfihangel-y-Pennant || [[Llanfihangel-y-Pennant]]
| || Settlement || SH6708
|-
| Llanfor || [[Llanfor]]
| || Settlement || SH9336
|-
| Llanfrothen || [[Llanfrothen]]
| || Settlement || SH6241
|-
| Llangelynnin || [[Llangelynnin, Gwynedd|Llangelynnin]]
| || Settlement || SH5707
|-
| Llangïan || Llangïan
|[[Llangian]]|| Settlement || SH2928
|-
| Llangwnnadl || [[Llangwnnadl]]
| || Settlement || SH2032
|-
| Llangybi || [[Llangybi, Gwynedd|Llangybi]]
| || Settlement || SH4241
|-
| Llangywer || [[Llangywer]]
|Llangower|| Settlement || SH9032
|-
| Llaniestyn || [[Llaniestyn, Gwynedd|Llaniestyn]]
| || Settlement || SH2733
|-
| Llanllechid || [[Llanllechid]]
| || Settlement || SH6268
|-
| Llanllyfni || [[Llanllyfni]]
| || Settlement || SH4751
|-
| Llannerchfydaf || Llannerchfydaf
| || Area || SH9017
|-
| Llannor || [[Llannor]]
| || Settlement || SH3537
|-
| Llanrug || [[Llanrug]]
| || Settlement || SH5363
|-
| Llanuwchllyn || [[Llanuwchllyn]]
| || Settlement || SH8730
|-
| Llanwnda || [[Llanwnda, Gwynedd|Llanwnda]]
| || Settlement || SH4758
|-
| Llanycil || [[Llanycil]]
| || Settlement || SH9134
|-
| Llanymawddwy || [[Llanymawddwy]]
| || Settlement || SH9019
|-
| Llanystumdwy || [[Llanystumdwy]]
| || Settlement || SH4738
|-
| Llecheiddior || Llecheiddior
| || Area || SH4743
|-
| Llidiardau || [[Llidiardau]]
| || Area || SH8738
|-
| Llidiart y Barwn || Llidiart y Barwn
| || Topographical feature || SH9012
|-
| Llithfaen || [[Llithfaen]]
| || Settlement || SH3543
|-
| Llwyndyrys || [[Llwyndyrys]]
| || Settlement || SH3741
|-
| Llwyngwril || [[Llwyngwril]]
| || Settlement || SH5909
|-
| Llwynhudol || Llwynhudol
| || Settlement || SH3836
|-
| Llynpenmaen || Penmaen-pŵl
| [[Penmaenpool]]|| Settlement || SH6918
|-
| Machroes || Machroes
| || Settlement || SH3126
|-
| Maenofferen || [[Maenofferen quarry|Maenofferen]]
| || Area || SH7045
|-
| Maentwrog || [[Maentwrog]]
| || Settlement || SH6640
|-
| Maesgeirchen || [[Maesgeirchen]]
| || Settlement || SH5871
|-
| Maesglasau || Maesglasau
| || Area || SH8114
|-
| Mallwyd || [[Mallwyd]]
| || Settlement || SH8612
|-
| Manod || Manod
| || Settlement || SH7044
|-
| Minffordd || Minffordd
| || Settlement || SH5770
|-
| Minffordd || [[Minffordd]]
| || Settlement || SH5938
|-
| Minllyn || [[Minllyn quarry|Minllyn]]
| || Settlement || SH8514
|-
| Moelyci || Moelyci
| || Topographical feature || SH5966
|-
| Morfa || Morfa
| || Settlement || SH1933
|-
| Morfa Bychan || [[Morfa Bychan]]
| || Settlement || SH5437
|-
| Morfa Nefyn || [[Morfa Nefyn]]
| || Settlement || SH2840
|-
| Mynydd Llandygái || Mynydd Llandygái
|[[Mynydd Llandygai]]|| Settlement || SH6065
|-
| Mynytho || [[Mynytho]]
| || Settlement || SH3030
|-
| Nanhoron || Nanhoron
| || Man-made feature || SH2831
|-
| Nantgwynant || Nantgwynant
|[[Nant Gwynant]]|| Settlement || SH6351
|-
| Nantlle || [[Nantlle]]
| || Settlement || SH5053
|-
| Nantmor || [[Nantmor]]
| || Settlement || SH6046
|-
| Nantperis || Nantperis
|[[Nant Peris]]|| Settlement || SH6058
|-
| Nasareth || [[Nasareth]]
| || Settlement || SH4750
|-
| Nebo || [[Nebo, Gwynedd|Nebo]]
| || Settlement || SH4750
|-
| Nefyn || [[Nefyn]]
| || Settlement || SH3040
|-
| Pandy || Pandy
| || Area || SH8729
|-
| Pant-glas || Pant-glas
|[[Pant Glas]]|| Settlement || SH4747
|-
| Pantperthog || [[Pantperthog]]
| || Settlement || SH7404
|-
| Parc || Parc
| || Area || SH8733
|-
| Penantlliw || Penantlliw
| || Area || SH8132
|-
| Penbodlas || Penbodlas
| || Settlement || SH2833
|-
| Pencaenewydd || Pencaenewydd
| || Settlement || SH4041
|-
| Pen-dre || Pen-dre
| || Area || SH5900
|-
| Pengilfach || Pengilfach
| || Area || SH5661
|-
| Pengroeslon || Pengroeslon
| || Settlement || SH2130
|-
| Penhelyg || Penhelyg
|[[Penhelig]]|| Settlement || SN6296
|-
| Penisa'r-waun || Penisa'r-waun
|[[Penisa'r Waun]]|| Settlement || SH5563
|-
| Pen-lan || Pen-lan
| || Area || SH6139
|-
| Penmorfa || Penmorfa
| || Settlement || SH5440
|-
| Pennal || [[Pennal]]
| || Settlement || SH6900
|-
| Pen-rallt || Pen-rallt
| || Settlement || SH3735
|-
| Penrhos || [[Penrhos, Gwynedd|Penrhos]]
| || Settlement || SH3433
|-
| Penrhosgarnedd || Penrhosgarnedd
| || Settlement || SH5570
|-
| Penrhyndeudraeth || [[Penrhyndeudraeth]]
| || Settlement || SH6139
|-
| Pentir || [[Pentir]]
| || Settlement || SH5766
|-
| Pentre Gwynfryn || [[Pentre Gwynfryn]]
| || Settlement || SH5927
|-
| Pentrefelin || Pentrefelin
| || Settlement || SH5239
|-
| Pentre-uchaf || Pentre-uchaf
| || Settlement || SH3539
|-
| Pen-y-bryn || Pen-y-bryn
|[[Pen y Bryn]]|| Settlement || SH6919
|-
| Penychain || Penychain
| || Man-made feature || SH4335
|-
| Pen-y-ffridd || Pen-y-ffridd
| || Area || SH5056
|-
| Pen-y-graig || Pen-y-graig
| || Settlement || SH2033
|-
| Pen-y-groes || Pen-y-groes
|[[Penygroes, Gwynedd|Penygroes]]|| Settlement || SH4653
|-
| Pistyll || [[Pistyll]]
| || Settlement || SH3242
|-
| Pontllyfni || Pontllyfni
| || Settlement || SH4352
|-
| Pontrhythallt || Pontrhythallt
| || Settlement || SH5463
|-
| Pont-rug || Pont-rug
| || Settlement || SH5163
|-
| Porth Dinllaen || Porth Dinllaen
|[[Porthdinllaen]]|| Topographical feature || SH2841
|-
| Porth Penrhyn || Porth Penrhyn
|[[Port Penrhyn]]|| Settlement || SH5972
|-
| Porthmadog || [[Porthmadog]]
| || Settlement || SH5638
|-
| Portmeirion || [[Portmeirion]]
| || Settlement || SH5837
|-
| Pren-teg || Pren-teg
|[[Prenteg]]|| Settlement || SH5841
|-
| Pwllheli || [[Pwllheli]]
| || Settlement || SH3735
|-
| Rachub || [[Rachub]]
| || Settlement || SH6268
|-
| Y Rhiw || [[Y Rhiw]]
| || Settlement || SH2227
|-
| Rhiwbryfdir || [[Rhiwbryfdir]]
| || Settlement || SH6946
|-
| Rhiwlas || [[Rhiwlas, Llanddeiniolen|Rhiwlas]]
| || Settlement || SH5765
|-
| Rhos Isaf || Rhos Isaf
| || Settlement || SH4857
|-
| Rhos-ddu || Rhos-ddu
| || Settlement || SH2535
|-
| Rhosdylluan || Rhosdylluan
| || Settlement || SH8628
|-
| Rhos-fawr || [[Rhos-fawr]]
| || Settlement || SH3839
|-
| Rhosgadfan || [[Rhosgadfan]]
| || Settlement || SH5057
|-
| Rhosgyll || Rhosgyll
| || Area || SH4540
|-
| Rhoshirwaun || [[Rhoshirwaun]]
| || Area || SH1929
|-
| Rhos-lan || Rhos-lan
| || Area || SH4840
|-
| Rhoslefain || Rhoslefain
| || Settlement || SH5705
|-
| Rhostryfan || [[Rhostryfan]]
| || Settlement || SH4957
|-
| Rhosygwaliau || Rhosygwaliau
|[[Rhos-y-gwaliau]]|| Settlement || SH9434
|-
| Rhos-y-llan || [[Rhos-y-llan]]
| || Settlement || SH2337
|-
| Rhyd || [[Rhyd, Gwynedd|Rhyd]]
| || Settlement || SH6341
|-
| Rhyd-ddu || [[Rhyd-ddu]]
| || Settlement || SH5652
|-
| Rhydlios || [[Rhydlios]]
| || Area || SH1830
|-
| Rhyduchaf || Rhyduchaf
|[[Rhyd-uchaf]]|| Settlement || SH9037
|-
| Rhydyclafdy || [[Rhydyclafdy]]
| || Settlement || SH3234
|-
| Rhydygwystl || Rhydygwystl
| || Settlement || SH4039
|-
| Rhyd-y-main || Rhyd-y-main
| || Area || SH8022
|-
| Rhydyronnen || Rhydyronnen
|[[Rhyd-yr-onnen]]|| Settlement || SH6102
|-
| Rhyd-y-sarn || Rhyd-y-sarn
|[[Rhyd-y-Sarn]]|| Settlement || SH6942
|-
| Sarn Mellteyrn || Sarn Mellteyrn
|[[Sarn Meyllteyrn]]|| Settlement || SH2332
|-
| Sarnau || Sarnau
| || Settlement || SH9739
|-
| Sarn-bach || Sarn-bach
| || Settlement || SH3026
|-
| Saron || Saron
| || Settlement || SH4658
|-
| Seion || Seion
| || Settlement || SH5467
|-
| Sling || Sling
| || Settlement || SH6067
|-
| Soar || [[Soar, Gwynedd|Soar]]
| || Settlement || SH6135
|-
| Tabor || Tabor
| || Settlement || SH7517
|-
| Taimorfa || Taimorfa
| || Settlement || SH2826
|-
| Talardd || Talardd
| || Settlement || SH8926
|-
| Talsarnau || [[Talsarnau]]
| || Settlement || SH6135
|-
| Talweunydd || Talweunydd
| || Settlement || SH6947
|-
| Tal-y-bont || [[Tal-y-bont, Dyffryn Ardudwy|Tal-y-bont]]
| || Settlement || SH5921
|-
| Tal-y-bont || Tal-y-bont
|[[Talybont, Bangor|Talybont]]|| Settlement || SH6070
|-
| Tal-y-llyn || [[Tal-y-llyn, Gwynedd|Tal-y-llyn]]
| || Settlement || SH7109
|-
| Tal-y-sarn || Tal-y-sarn
|[[Talysarn]]|| Settlement || SH4853
|-
| Tan-lan || Tan-lan
| || Settlement || SH6142
|-
| Tanygrisiau || [[Tanygrisiau]]
| || Settlement || SH6845
|-
| Tan-y-maes || Tan-y-maes
| || Area || SH5266
|-
| Tonfanau || [[Tonfanau]]
| || Man-made feature || SH5603
|-
| Traeth Mawr || [[Traeth Mawr]]
| || Area || SH5939
|-
| Trawsfynydd || [[Trawsfynydd]]
| || Settlement || SH7035
|-
| Tre-faes || Tre-faes
| || Settlement || SH2532
|-
| Trefeini || Trefeini
| || Area || SH7046
|-
| Trefor || [[Trefor, Gwynedd|Trefor]]
| || Settlement || SH3746
|-
| Tre-garth || Tre-garth
|[[Tregarth]]|| Settlement || SH6067
|-
| Tremadog || [[Tremadog]]
| || Settlement || SH5640
|-
| Tre'r-llan || Tre'r-llan
| || Settlement || SH9737
|-
| Tudweiliog || [[Tudweiliog]]
| || Settlement || SH2336
|-
| Tŷ-nant || Tŷ-nant
| || Area || SH9026
|-
| Tyn-y-maes || Tyn-y-maes
| || Settlement || SH6363
|-
| Tywyn || [[Tywyn]]
| || Settlement || SH5800
|-
| Uwchmynydd || [[Uwchmynydd]]
| || Area || SH1525
|-
| Waun || Waun
| || Settlement || SH5564
|-
| Waun Pentir || Waun Pentir
| || Settlement || SH5766
|-
| Waunfawr || [[Waunfawr]]
| || Settlement || SH5359
|-
| Waun-wen || Waun-wen
| || Settlement || SH5768
|-
| Wenallt || Wenallt
| || Settlement || SH7317
|-
| Yr Wyddfa || [[Snowdon]]
| || Topographical feature || SH6054
|-
| Y Bermo || [[Barmouth]]
| || Settlement || SH6115
|-
| Ynys || [[Ynys, Gwynedd|Ynys]]
| || Settlement || SH5935
|-
| Ynys Enlli || [[Bardsey Island|Bardsey]]
| || Island || SH1221
|}
==References==
{{reflist}}
{{Gwynedd}}
{{List of standardised Welsh place-names}}
[[Category:Lists of standardised Welsh place-names|Gwynedd]]
[[Category:Geography of Gwynedd]]