| Name | fl. | Shrine or Associated Church | Saint's Day (Gŵyl Mabsant) | Royal origins | Notes |
|---|
| Aaron of Aleth | 6th century | Cézembre (Brittany) | 22 June (trad.[9]) | — | Mentor ofSaint Malo |
| Aaron of Caerleon | 3rd century 4th century | Caerleon | 1 July (trad.[10]) 20 June (mod.[11][12]) | — | Martyred withSaint Julius |
Adwen or Adwenna | 5th century 6th century | Advent (Cornwall) | | Daughter ofBrychan, king ofBrycheiniog | Sometimes conflated withSaint Dwynwen |
Aeddan Foeddog or Aidan or Maedoc | 6th century 7th century | Ferns (Ireland) Enniscorthy (Ireland) | 31 January (trad.[13][14]) | Son ofSaint Aneurin, son ofCaw[15] | "Aeddan Maedoc"[14] Disciple ofSaint David |
Aelhaiarn or Aelhaearn | 7th century | Guilsfield Llanaelhaearn | 2 November (trad.[16]) | Descendant ofVortigern,king of Britain | Brother of SaintsCynhaiarn andLlwchaiarn Disciple ofSaint Beuno |
| Aerdeyrn | 6th century | Llanelldeyrn | | Descendant ofVortigern,king of Britain | Brother ofSaint Ederyn |
| Aelrhiw | | | 9 September (trad.[17]) | | |
Afan of Builth or Afan Buellt | 6th century | Llanafan Fawr Llanfechan Llanafan | 17 or16 November (trad.[16]) | Great-grandson ofCunedda Wledig,king of Gwynedd | Bishop and martyr Cousin ofSaint David |
| Amphibalus | 3rd century 4th century | St Albans[18] | 25 June (trad.)[19] | | Priest; convertedSaint Alban Born in Isca (Caerleon) |
| Ane | | | | Child ofCaw, king ofStrathclyde | |
Saint Armel or Arthfael or Armagilus | 6th century | Plouharnel (Morbihan,Brittany) Saint-Armel (Morbihan,Brittany),Plouarzel, (Finistère,Brittany). | 16 August | Son ofHoel,king of Brittany | |
| Asaph | 6th century | St Asaph | 1 May (trad.[20]) 5 May[21] | | Bishop |
| Bach | 7th century | Eglwys Fach[23] | | | Hermit Probably spurious[22] |
| Baglan | 6th century | Baglan | | Son ofIthel Hael, prince ofArmorica | |
| Baglan | 7th century | Llanfaglan | | | Son of Dingad |
Baruc or Barruc | 6th century | | 27 September or 29 November (trad.[17][16]) | | |
Beuno or Bono | 7th century | Clynnog Fawr | 21 or22 April (trad.[24]) | Descendant ofVortigern,king of Britain | Abbot Uncle ofSaint Winifred |
| Bidofydd | | | 26 April (trad.[24]) | | WithSaint Fidalis |
| Bieuzi | 6th century | | 24 November | | Disciple ofGildas |
Bleddyn or Bleiddian or Lupus | | | 29 July (trad.[25]) | | Bishop |
| Bodfan | | | 2 January (trad.[13]) | | |
Brannoc or Brannock | 6th century | Braunton | 7 January or 26 June | | |
| Brioc | 5th century | | | | Founder saint ofBrittany |
| Brothen | | Llanfrothen | 15 or14 October (trad.[17]) | | |
| Brychan Brycheiniog | 5th century | | | King ofBrycheiniog | Venerated in his generation but of disputed status now. Husband ofPrawst In Wales, considered the father ofDwynwen; in Cornwall, considered the father ofAdwen. |
Brynach or Byrnach | | | 7 April (trad.[24]) | | Abbot Thetranslation of hisrelics was sometimes celebrated separately on 26 June.[20] | |
| Buan | | | 4 August (trad.[26]) | | |
Bugi or Beugi or Bywgi or Hywgi | 6th century | | | Son ofGwynllyw, king ofGwynllwg | Father ofBeuno and brother ofCadoc[27]
|
| Cadfan | 6th century | Llangadfan | 1 November (trad.[16]) | Grandson ofBudic II ofBrittany | Founding abbot ofTywyn andBardsey abbeys |
| Cadfarch | | | 24 October (trad.[17]) | | |
Cadoc or Catwg | 5th century | Caerleon | 24 January (trad.[13]) | | Abbot ofLlancarfan |
Cadwaladr Fendigaid or Cadwalader | 7th century | Llangadwaladr Llangadwaladr | 12 November (trad.[16]) | Son ofCadwallon,king of Gwynedd | "Cadwalader the Blessed" King ofGwynedd |
| Caffo | 6th century | Llangaffo | | Child ofKing Caw ofStrathclyde | |
| Caian | | Tregaian | 25 September (trad.[17]) | | |
Saint Cain or Keyne or Ceinwen | 5th century | Cerrigceinwen Llangeinwen | 8 October (trad.[17]) | Child ofKing Caw ofStrathclyde | Chiefly worked inCornwall |
| Callwen | | | 1 November (trad.[16]) | | Virgin |
| Cammarch | | | 8 October (trad.[17]) | | |
Caradog or Caradoc | 12th century | Lawrenny | 13 April (trad.[24]) | Noble ofBrecknockshire | Hermit |
Carannog or Carantoc | 6th century | Llangrannog Crantock (Cornwall) | 15, 16,17 May, or 15 Jan (trad.[20][13][29]) | Great-grandson ofCeredig, king ofCeredigion | |
| Caron | Possibly 3rd century | Tregaron | 5 March (trad.[24]) | Possibly the same asCarausius (Roman name). However, Baring-Gould associates him with Ciaran[30] | Bishop or King |
Cathan or Cathen | | St Cathan's Chapel Colonsay &Luing Gigha | 17 May (trad.[20]) | | |
| Cedol | | | 1 November (trad.[16]) | | |
| Ceidio | | | | Child ofKing Caw ofStrathclyde | |
| Ceitho | | | 5 August (trad.[26]) | | |
| Celynin | 6th century | Llangelynnin | 20 November (trad.[16]) | Son of PrinceHelig | |
| Ceneu | | Clydau | 15 June (trad.[20]) | Son ofCorun | Bishop ofSt David's |
Cenydd or Cennydd or Kenneth | 6th century | Llangennith Languidic (Brittany) | 5 July | Son of "King Dihoc" (presumablyDeroch II ofDomnonée) | |
| Cennych | 6th century | Llangennych | | | |
| Cewydd | 5th century | Aberedw Lancaut Laleston | 1, 2 or15 July (trad.[25]) | Child ofKing Caw ofStrathclyde | |
| Cian | 6th century | Llangian | 11 December (trad.[31]) | | |
Cieran or Ciarán of Saigir or Kieran | 5th century 6th century | Saighir (Ireland) | 5 March (trad.[24]) | Son of Lugna, a noble of theOsraige | Anapostle of Ireland Bishop ofSaighir |
Ciwa or Cigwa or Kywa or Kew | | St Kew (Cornwall)[32] | 6 or8 February[13][33] (trad.) | | Virgin; sister of St Docco |
| Clydai | | | 1 November (trad.[16]) | | Virgin |
Clydog or Clintacus | | | 19 August or 3 Nov (trad.[26][16]) | | King |
Clydwyn or Cledwyn | 6th century | Penmachno (formerly) | 1 November (trad.[16]) | Son ofBrychan, king ofBrycheiniog | King |
Clydyn or Clydau | | | 3 November (trad.[16]) | | |
| Collen | 7th century | Llangollen Langolen (France) | 21 or22 May (trad.[20]) | | |
| Colman | | | | | |
| Corentin | 5th century | | | | Firstbishop of Quimper |
Cowdra or Cawrdaf | | | 5 December or 21 Feb (trad.[13][31]) | | King |
| Creirwy | 5th century | | | Great-granddaughter ofBrychan, king ofBrycheiniog, granddaughter ofBudic II | |
| Cristiolus | | | 3 December (trad.[16]) | | |
| Cubertsee Gwbert | 8th century | | | | |
| Curig | 6th century 7th century | | 16 or15 June (trad.[20]) | | Martyr Celebrated withSt Julitta |
| Cwyfen | | | 3 or 2 or4 June (trad.[20]) | | |
| Cwyllog | 6th century | Llangwyllog | | Child ofCaw, king ofStrathclyde | |
| Cybi | 6th century | | 5, 6 or7 November, or 13 Aug (trad.[16][26]) | Abbot Descended from bothSeithenyn, king ofGwyddno, &Brychan, king ofBrycheiniog | |
| Cyllin | 1st century | | | Son ofCaratacus | King ofSiluria Father ofKing Coel |
| Cynbryd | | | 19 or20 March (trad.[24]) | | Martyr |
| Cynddilig | | | 1 November (trad.[16]) | | |
Cyndeyrn or Kentigern or Mungo | 6th century 7th century | Glasgow | 13 January or 25 Jul (trad.[13][25]) | Son ofOwain, king ofRheged, andSaint Teneu | Bishop ofSt Asaph,Hoddom, &Glasgow |
| Cynfab | | | 15 November (trad.[16]) | | |
| Cynfarch | | Llanfair Dyffryn Clwyd | 8 September (trad.[17]) | | |
| Cynfarwy | 7th century | Llechgynfarwy | 8, 10 or11 November (trad.[16]) | | |
Cyngar or Congar | 6th century | Holyhead Llangefni | 7 November (trad.[16]) | Child ofGerren Llyngesog ofDumnonia | Abbot |
| Cynhafal | | | 5 October (trad.[17]) | | |
| Cynidr | 7th century | Glasbury | 8 December (trad.[31]) | Grandson ofBrychan, king ofBrycheiniog | Bishop Son ofSaint Gwladys and brother ofSaint Eigon |
| Cynllo | 5th century 6th century | Llangoedmor | 17 or14 July or 8 Aug (trad.[25][26]) | Grandson ofKing Coel | King |
| Cynog | | | 14 or8 March or 9 Oct (trad.[24][17]) | | Martyr |
| Cywair | | | 11 July (trad.[25]) | | |
| Cynwyl | | Cynwyl Elfed Cynwyl Gaeo | 30 April (trad.[24]) | Descended fromBrychan, king ofBrycheiniog | |
David or Dewi Sant | 6th century | St David's | 1 March (trad.[24]) | Great-grandson ofSeithenyn, king ofGwyddno, & ofBrychan, king ofBrycheiniog | Patron Saint of Wales |
Decuman or Degyman | 7th century | Watchet (England) Williton (England) | 27 or30 August (trad.[26]) 27 February[34] | | Martyr |
Deifer or Dier | | | 8 March (trad.[24]) | | |
Deiniol or Daniel | 6th century | Bangor | 11 September or 10 Dec (trad.[17][31]) | | Bishop |
| Deiniolen | | | 22 or23 November (trad.[16]) | | |
| Derfel Gadarn | 6th century | Llandderfel | 5 May (trad.[20]) | | |
Deruvian or Duvian or Damian | 2nd century | Merthyr Dyfan (mistakenly) Llandyfan (mistakenly) | 24 May (trad.[20]) | | Bishop &Confessor Usually celebrated withSt Fagan, with whom he supposedly evangelizedRoman Britain atKing Lucius's request Often (mistakenly) conflated withSt Dyfan on the authority ofWilliams |
| Digain | | | 21 November (trad.[16]) | | |
| Dilwar | | | 4 February (trad.[13]) | | Virgin |
| Dingad | 5th century | Llandovery | 1 November (trad.[16]) | Son ofBrychan, king ofBrycheiniog | |
| Diryng | 5th century | | | Child ofCaw, king ofStrathclyde | |
| Dochelin | | | 8 July (trad.[25]) | | |
Dochau or Dochow or Dochwy or Dogwyn or Docco | 5th century | Llandough, Cowbridge Llandough, Penarth St Kew (Cornwall)[35] | 15 February (trad.[13]) | | |
| Doged | | Llanddoged | | Descendant ofCunedda according to the tale ofCulhwch and Olwen | Martyr |
| Dogfael | | | 31 October or 14 Jun (trad.[17][20]) | | |
Dogfan or Doewan | 5th century | | 13 or12 July (trad.[25]) | Son ofBrychan, king ofBrycheiniog | Martyr |
| Dominica | 8th century | | 8 May | | |
Dona or Dwna | | Llandona | 1 November (trad.[16]) | | |
Dubhán
| 5th century | | St Dubhán's Church,Hook Head (Ireland) | | |
Dunod or Dunawd | 6th century 7th century | | 7 September (trad.[17]) | | Abbot |
Dwynwen or Dweynween | 5th century | | 25 January or 13 Jul (trad.[13][25]) | Daughter ofBrychan, king ofBrycheiniog | Virgin |
| Dwywe | 6th century | | | | |
| Dyfan | | Merthyr Dyfan Llandyfan | 24 May (trad.[20]) | | Highly obscure Presumablymartyred Generally confused withSt Deruvian |
| Dyfnan | 5th century | Llanddyfnan | 22 or24 April (trad.[24]) | Alleged son ofBrychan, king ofBrycheiniog | |
| Dyfnog | | Llanrhaeadr-yng-Nghinmeirch | 13 February (trad.[13]) | | |
| Dyfodwg | 6th century | Llantrisant | 25 June | | |
Dyfrig or Dubricius | 5th century 6th century | | 14 November (trad.[16]) | | Abbot Thetranslation of hisrelics was sometimes separately celebrated on 29 May.[20] |
Edeyrn or Edern | 6th century | Llanedeyrn | 11 November or 6 Jan (trad.[16][13]) | Descendant ofVortigern,king of Britain | |
| Edwen | | | 6 November (trad.[16]) | | Virgin |
| Egwad | 7th century | Llangwad Llanfynydd | | | |
| Eigen | 1st century | Llanigon | | | | |
| Eigion | | | 10 September (trad.[17]) | | Bishop |
| Eigon | 7th century | Llanigon | | Grandson ofBrychan Brycheiniog | Son ofSaint Gwladys, brother ofSaint Cynidr |
| Eigrad | 6th century | Llaneugrad | | Child ofCaw, king ofStrathclyde | |
| Eigron | 5th century | Llanigon (Cornwall) | | Child ofCaw, king ofStrathclyde | |
| Eilian | 6th century | Llaneilian | 13 January (Orth.) | | ARoman who emigrated toAnglesey to live as a hermit |
| Eirw | 5th century 6th century | Eglwyswrw | [36] | | Female saint |
| Einion Frenin | 5th century 6th century | Llanengan | 9 or10 February (trad.[13]) | Descendant ofCunedda, king ofGwynedd | "Einion the King": King ofLlŷn (and possiblyAnglesey) Brother of SaintsMeirion andSeiriol |
Elaeth or Eleth | 6th century | Amlwch | 10 or11 November (trad.[16]) | | King of a realm in northern Britain who fled to Wales |
| Elen | 4th century | | | Daughter ofEudaf Hen | Wife ofMagnus Clemens Maximus Married into the family ofBrychan |
| Elfan | | | 26 September (trad.[17]) | | |
| Elfin | | Warrington (England) | | | |
Elian or Elien | 5th century | Llanelian | 13 January (trad.[13]) | | |
| Elledeyrn | 4th century | | | Descendant ofVortigern,king of Britain | |
| Elli | 6th century | Llanelli | 23 January (trad.[13]) | | Abbot |
Saint Eluned or Eiliwedd or Almedha | 5th century | Slwch Tump | 1 August (trad.[26]) | Daughter ofBrychan, king ofBrycheiniog | Martyr andvirgin |
Elvis of Eilfyw or Ailbe | 6th century | St Elvis | | | |
| Elwad | | | 22 March (trad.[24]) | | |
Elyw or Eliw | | | 14 or17 July (trad.[24]) | | |
| Enddwyn | | Ffynnon Enddwyn, Llanenddwyn | | | |
Endelienta or Endellion | 5th century 6th century | Church of St Endelienta, St Endellion (Cornwall) | | Daughter ofBrychan, king ofBrycheiniog | |
| Enoder | | St Enoder (Cornwall) | | | |
| Enodoch | 6th century | | 7 March | | |
| Erbin | 5th century | | 29 May or 13 Jan (trad.[13][20]) | | King ofDumnonia |
Erfyl or Urfyl | | Llanerfyl | 6 July (trad.[25]) | | |
| Eugrad | 6th century | | | Child ofCaw, king ofStrathclyde | |
| Eurgain | | | 29 June (trad.[20]) | | |
| Ewryd | | | 31 January (trad.[13]) | | |
Fagan or Ffagan or Fugatius | 2nd century | St Fagans | 24 May or 8 Aug (trad.[20][26]) 26 May[citation needed] | | Bishop &Confessor Usually celebrated withSt Deruvian, with whom he supposedly evangelizedRoman Britain atKing Lucius's request Often (mistakenly) connected withSt Dyfan on the authority ofWilliams |
Ffinian or Finian | 5th century | | 23 February[citation needed] | | |
Ffraid or Bridget or Bride or Bhrid | 5th century 6th century | Llansantffraed Llansantffraid Llansantffraid-ym-MechainLlansantffraid Glan Conwy | 1 February (trad.[13]) | | Irish patron saint. Nun and abbess. | |
| Fidalis | | | 26 April (trad.[24]) | | WithSaint Bidofydd |
Finan of Ffinan | 6th century | | 17 or13 February or 11 Dec (trad.[13][31]) 18 March[citation needed] | | Bishop |
Flewyn or Fflewin or Fflewyn | 6th century | Llanfflewin | 12 December (trad.[31]) | Son ofIthel Hael | |
Foeddog or Maeddog or Maedoc | 6th century | | | Child ofCaw, king ofStrathclyde | |
| Gafran | 6th century | | [37] | | Son-in-law ofBrychan, king ofBrycheiniog | |
| Gallgo | | | 27 November (trad.[16]) | | |
| Gallo | 5th century | | | Child ofCaw, king ofStrathclyde | |
Garmon or Germanus of Auxerre | 4th century | Llanarmon-yn-Iâl | 31, 13, 14 or30 July, or1 Oct or27 or 28 May (trad.[25][17][20]) | | Bishop Credited with leading an army of Britons against invading Picts |
| Gelert | 7th century | Llangeler Beddgelert | 29 June | | |
| Gildas or Aneurin | c. 500–570 | | | Child ofCaw, king ofStrathclyde. | Possibly the poetAneirin. Credited in Wales as the father ofSaint Aeddan[14]| |
Gistilian or Gistlian | | | 2 or4 March (trad.[24]) | | Bishop |
| Gofor | | | 9 May (trad.[20]) | | |
Gollen or Colin | | Llangollen | | | |
| Govan | 6th century | St. Govan's Head | |
|
| Gredifael | 6th century | Penmynydd | 13 or22 November (trad.[16]) | Son ofIthel Hael | |
| Grwst | | | 1 December (trad.[31]) | | |
| Guirec | 6th century | Perros-Guirec | | | |
| Gurthiern | 5th century | Quimperlé | 3 July | Cousin ofVortigern,king of Britain | |
| Gwalehes or Gualehes, gwalch(es) | 6th century | Llandaff | | | Was either disciple ofCadoc,[38] or disciple ofBarruc.[39] Died alongside Barruc and buried onYnys Echni (William Camden thought that Barruc might have been the disciple of Gwalehes)[40] |
| Gwbert | 8th century | Gwbert-on-Sea | 4 October (trad.) | Venerated also atCubert, Cornwall; Cubert is said to have been a monk who came from Wales and assisted Carantoc in evangelizing that district; later returned to his monastery and became abbot and died in 775 AD; feast at Cubert is on Sunday following 4 Oct.[41][42][43] | |
Gwen or Wenna | 5th century | | | | Wife ofSalomon of Cornwall Mother ofSaint Cybi & aunt ofSaint David |
| Gwenafwy | 6th century | | 1 July | Daughter ofCaw, king ofStrathclyde | |
| Gwenfaen | | | 3, 4 or5 November (trad.[16]) | | Virgin |
| Gwenfyl | | | 1 November (trad.[16]) | | Virgin |
| Gwynhoedl | | | 1 January (trad.[13]) | | |
| Gwenllian | 5th century | | | Daughter ofBrychan, king ofBrycheiniog | Great-grandmother of SaintsDeinol andCynwl |
| Gwenlleu | | | 1 November (trad.[16]) | | Bishop |
| Gwenllwyfo | 7th century | Llanwenllwyfo | | | |
| Gwenog | | | 3 January (trad.[13]) | | Virgin |
| Gwenrhiw | | | 1 November (trad.[16]) | | Virgin |
| Gwladys | 6th century | | | Daughter ofBrychan, king ofBrycheiniog | Queen ofGwynllyw Mother of saintsCynidr andEigon |
| Gwrda | | | 5 December (trad.[31]) | | |
| Gwrddelw | | Llanddewi Brefi | 7 January (trad.[13]) | Child ofCaw, king ofStrathclyde | |
| Gwrfyw | | Bangor (formerly) | | Son ofPasgen | |
| Gwrhai | 5th century | | | Child ofCaw, king ofStrathclyde | |
| Gwrnerth | | | 7 April (trad.[24]) | | WithSaint Llywelyn |
Gwrthwl or Mwthwl | | | 2 March (trad.[24]) | | |
| Gwyrd | | | 1 November (trad.[16]) | | Friar |
| Gwyddelan | | | 22 August (trad.[26]) | | |
| Gwyddfarch | | | 3 November (trad.[16]) | | |
Gwynan or Gwynen | | | 13 December (trad.[31]) | | Commemorated withSaint Gwynws Conflated withSaint Gwynin |
| Gwynin | | Dwygyfylchi | 31 December (trad.[31]) | | |
Gwynllyw Filwr or Gundleus (Eng Woolos or Woolo) | 5th century | Newport Cathedral, St Woolos | 29 or28 February (trad.[13]) 29 March (mod.) | King ofGwynllwg | Husband ofGwladys, father ofCadoc and others[44]
|
| Gwynno | 6th century | Llantrisant Llanwynno | 26 October | | |
| Gwynog | | | 22, 23 or24 October (trad.[17]) | | Commemorated withSaint Noethon |
| Gwynws | | | 13 December (trad.[31]) | | Commemorated withSaint Gwynan |
| Henwg | 5th century | Llanhennock | | | Supposed links toKing Arthur andConstantine |
| Huail | 6th century | | | Son ofCaw, king ofStrathclyde | |
| Hychan | | | 8 August (trad.[26]) | | |
| Hywel | 6th century | Llanhywel Llanllowell | | Son ofEmyr Llydaw,king of Brittany | King |
| Idloes | | Llanidloes | 6 September (trad.[17]) | | |
| Iestyn | 6th century 7th century | Llaniestyn Llaniestyn | | | |
Ilar or Hilary | 6th century | Llanilar Trefilan | 13, 14 or15 January (trad.[13]) | — | Martyr PossiblyBretish companion ofSaint Cadfan |
| Ilid | | Llanilid | | | |
| Illog | | | 8 August (trad.[26]) | | |
Illtud or Illtyd | 5th century | Llantwit Major | 6 November (trad.) | | |
| Ina | 5th century | Llanina | 1 February (trad.[13][45]) | Granddaughter ofCunedda Wledig, king ofGwynedd | |
| Isan | 6th century | Llanishen | | | Disciple ofSaint Illtyd |
Isfael or Ismael | 6th century | St Ishmaels | 16 June (trad.[20]) | Son ofBudig | Bishop Disciple ofSaint David |
| Issel | 6th century | Saundersfoot | | | Father of SaintsGwen Teirbron andTeilo Grandfather ofEuddogwy,Tyfei,Isfael,Gwenthenoc,Jacut,Winwaloe |
| Issui | | | 30 October (trad.[17]) | | Martyr |
| Ithel Hael | 6th century | | | | Prince ofArmorica Father of numerous saints |
| Jacut | 5th century | Saint-Jacut-de-la-Mer | | | Great-grandson ofBrychan Brycheiniog |
| John Roberts | 1577–1610 | | 25 October | | Monk and priest BornTrawsfynydd, 1577 Martyred atTyburn 1610[46] |
| John Lloyd | ?–1679 | | 25 October | | Priest and martyr ExecutedCardiff, 1679[47] |
| Julitta | | | 16 or15 June (trad.[20]) | | Martyr Celebrated withSt Curig |
| Julius | 4th century | Caerleon | 1 July (trad.[10] 20 June (mod.[11][12]) | | Martyred withSaint Aaron of Caerleon |
Justinian or Stinan | 6th century | Llanstinan Saint David's | 5 December (trad.[31]) | | |
| Juthwara | 6th century | Sherborne Abbey | | | Sister of SaintsSidwell andWulvela |
| Keina | | | 7 October (trad.[17]) | | Virgin |
| Kevoca | | | | | |
| Llamined Angel | 7th century | | | Son ofPasgen | Claimed byVenedotian tribes[citation needed] Brother ofSaint Gwrfyw |
Llawddog or Lleuddad | | | 15 January (trad.[13]) | | Abbot |
| Llechid | 6th century | Llanllechid | 1 December (trad.[31]) | Child ofIthel Hael | |
| Llibio | 5th century | | 28 February (trad.[13]) | | |
| Llily | 7th century | | 3 March | | |
Llwchaiarn or Lluwchaiarn | 7th century | | 12 or11 January (trad.[13]) | | |
| Llwydian | | | 19 November (trad.[16]) | | |
| Llwni | | | 11 August (trad.[26]) | | |
| Llyr | | | 21 October (trad.[17]) | | Virgin |
| Llywelyn | | | 7 April or 12 Dec (trad.[24][31]) | | WithSaint Gwrnerth |
| Lythan | | St Lythans | | | |
Mabyn or Mabena | 5th century | St Mabyn (Cornwall) | | Daughter ofBrychan, king ofBrycheiniog | |
| Machraith | | | 1 January (trad.[13]) | | |
| Madoc | 7th century | | 31 January | | |
| Madron | 6th century | Madron (Cornwall) | 17 May | | |
Madrun or Materiana | 5th century | | | | |
| Maël | 5th century 6th century | Corwen | 13 or12 May (trad.[20]) | | Hermit Celebrated withSt Sulien |
| Maelog | 6th century | Llanfaelog | 31 December (trad.[31]) | Child ofCaw, king ofStrathclyde | |
Maelrhys or Maelrys or Maelerw | | Bardsey Island | 1 January (trad.[13]) | | |
| Maethlu | | | 26 December (trad.[31]) | | |
| Maidoc | | | 28 February (trad.[13]) | | Bishop Not to be conflated withAeddan Foeddog of Ferns |
| Mallonius | 4th century | Rouen | 22 October | | |
Saint Malo or Machudd or Machutus | 5th century | | 15 November (trad.[16]) | | Disciple ofSaint Aaron |
| Mannacus | 6th century | | | | |
| Marnock | 6th century | | | | |
Materiana or Madrun or Madryn | 5th century | Minster (Cornwall) | 9 April | Daughter ofSaint Vortimer, king ofGwent | |
| Mawgan | 5th century | | 8 August | | |
| Mawnan | 7th century | | 18 December | | |
Mechell or Mechyll | 6th century | Llanfechell | 15 or14 November (trad.[16]) | | PossiblyBretish |
Meddwid or Moddwid | | | 27 August (trad.[26]) | | |
| Medwy | | | 1 January (trad.[13]) | | Bishop |
| Meilig | 6th century | Llowes | 14 or12 November (trad.[16]) | Child ofCaw, king ofStrathclyde | |
Meirion or Meirian | | | 4 February (trad.[13]) | | |
| Melaine | 6th century | St Mellion Mullion | | | |
Melangell or Monacella | 6th century | Pennant Melangell | 27 May or 4 or 31 Jan (trad.[13][20]) | | Virgin Abbess |
| Mellonius | 4th century | | 22 October | | |
Melyd or Melydyn | | | 9 May (trad.[20]) | | |
| Menefrida | 5th century | St Minver (Cornwall) | | Daughter ofBrychan, king ofBrycheiniog | |
Merin or Merryn | 6th century | St Merryn Lanmerin Plomelin | 6 January (trad.[13]) | Child ofSeithenyn, king ofGwyddno | |
| Mereweenna | 6th century | | 6 July | Daughter ofBrychan, king ofBrycheiniog | |
| Mordeyrn | | | 25 July (trad.[25]) | | |
| Mylling | | | 17 June (trad.[20]) | | |
Mylor or Melor | 6th century | | 1 October | | |
| Meugan | | | 25 or26 September, 14 Feb, 24 or 15 Apr or 18 Nov (trad.[17][13][24][16]) | | |
| Morhaiarn | | | 1 November (trad.[16]) | | |
| Mwrog | | | 24 or26 September (trad.[17]) | | |
| Mynver | 6th century | | 4 November | | |
| Nectan | 5th century | Hartland (England) | | Eldest son ofBrychan, king ofBrycheiniog | |
| Nidan | 7th century | Llanidan | 30 September (trad.[17]) | Grandchild ofPasgen | |
Noethan or Noethon | | | 22, 23 or24 October (trad.[17]) | | Commemorated withSaint Gwynog |
Non or Nonita | 5th century | Chapel of St Non Altarnun (Cornwall) | 3 March (trad.[24]) | Great-granddaughter ofSeithenyn, king ofGwyddno | Mother ofSaint David |
| Noyale | 6th century | | 6 July | | |
| Oudoceus | 7th century | Llandaff Llandogo | 2 July (trad.[25]) | | Bishop |
| Pabo Post Prydain | | | 9 November (trad.[16]) | | |
| Padarn | 6th century | Llanbadarn Fawr | 16, 15 or17 Aprilor 12 Nov (trad.[24][16]) | | Founder saint ofBrittany Bishop His ordination was also sometimes celebrated as a separate holiday on 23 September.[17] |
Padrig or Patrick | | | 17 March[24] | | Patron saint ofIreland Bishop |
| Patern | 5th century | | | | Companion ofSaint David |
| Paulinus | 6th century | | | | Founder saint ofBrittany |
| Peblig | 5th century | Llanbeblig | 3 or2 July (trad.[25]) | Son ofMagnus Clemens Maximus | Son ofSaint Elen Luyddog |
Pedrog or Petroc or Petrock | 6th century | Bodmin (Cornwall) | 4 June (trad.[20]) | | Patron saint ofCornwall Abbot |
| Peirio | 5th century 6th century | Rhosbeirio | | Child ofCaw, king ofStrathclyde | |
| Peris | 6th century | Nant Peris | 11 December or 26 Jul (trad.[31][25]) | Child ofHelig ofTyno Helig | |
| Peulan | 6th century | Llanbeulan | 2 or1 November (trad.[16]) | | |
| Pol Aurelian | 5th century | | | Son ofPorphyrius | Student ofSaint Iltud Bishop |
| Philip Evans | 1645–1679 | | 25 October | | Priest and martyr BornMonmouth, 1645 ExecutedCardiff, 1679[47] |
| Polin | | | 22 November (trad.[16]) | | Bishop |
| Pyr | 6th century | Caldey Island | | | |
| Rhediw | | | 11 November (trad.[16]) | | |
| Rhian | | | 8 March (trad.[24]) | | Bishop |
| Rhuddlad | | | 4 September (trad.[17]) | | Virgin |
| Rhwydrys | | | 1 November (trad.[16]) | | |
| Rhychwyn | 5th century | Llanrhychwyn | 12 June (trad.[20]) | | Brother ofCelynin |
| Rhystyd | 6th century | Llanrhystud | Thursday in the Ember Week before Christmas | | Dafydd ap Gwilym associates Rhystyd withDwynwen in Yr Hun Felys.[48] |
| Richard Gwyn | 1537-15 October 1584 | Wrexham | 17 October | | Martyr |
| Sadwrn | 6th century | | 29 November (trad.[16]) 25 October[citation needed] | | |
| Saeran | | | 13 January (trad.[13]) | | |
| Samson of Dol | 5th century | | | | |
| Samson of York | 6th century | | 28 July (trad.[25]) | Son ofCaw, king ofStrathclyde | Bishop |
Sannan or Sanan | | | 13 or7 June or 8 Mar or 29 Apr (trad.[20][24]) | | |
Sawyl or Saul | | | 15 January (trad.[13]) | | |
| Sefin | 5th century | | | Daughter ofBrychan, king ofBrycheiniog | Grandmother of SaintsDavid andCybi |
| Seiriol | 6th century | Penmon Puffin Island | 1 February (trad.[13]) | Descended fromCunedda, king ofGwynedd | Brother of SaintsEinion Frenin andMeirion Abbot atPenmon |
| Sidwell or Sativola | 6th century | Exeter, Devon | 31 July | | Sister of SaintsJuthwara andWulvela |
Silin or Giles | | | 1 September or 1 Oct or 27 Jan (trad.[17][13]) | | Abbot or bishop |
| Sulien | | | 2 September (trad.[17]) | | |
| Tanwg | 6th century | Llandanwg | | Son ofIthel Hael | |
Tathan or Tatheus | 6th century | | 26 December (trad.[31]) | | Abbot Irish missionary to Wales |
| Tathana | 5th century | | | Granddaughter of Meuric ap Tewdric of Trebeferad | Associated withSaint Iltud |
| Tathyw | 5th century | Caerwent St Athan | | | |
| Teath | 5th century | St Teath (Cornwall) | | Daughter ofBrychan, king ofBrycheiniog | |
Tecwyn or Tegwyn | 6th century | Llandecwyn | 14 September (trad.[17]) | Son ofIthel Hael | |
| Tegai | 6th century | Llandygai | | Son ofIthel Hael | |
Tegfedd or Tegwedd | 6th century | Llandegveth | 18 December (trad.[31]) | | Virgin |
Tegla or Tecla | | Llandegla | 1 or3 June or 23 or 24 Sept (trad.[20][17]) | | Virgin |
| Teilo | 6th century | Llantilio Crossenny Llantilio Pertholey Llandeilo Fawr | 9 or7 February or 26 Nov (trad.[13][16]) | Child ofBrychan, king ofBrycheiniog | Bishop |
| Teneu | 6th century | Glasgow | | Daughter ofLleuddun, king ofGododdin | Mother ofSaint Cyndeyrn Great-grandmother ofSaint Winifred |
| Teulyddog | 6th century | | | | Disciple ofDyfrig |
| Teuderius | | | 29 October (trad.[17]) | | |
| Tewdrig | 6th century | | 3 January (trad.[13]) 1 April[citation needed] | | King and martyr |
| Tigernach | 6th century | | 4 April | | |
| Trillo | 6th century | Llandrillo inDenbighshire Llandrillo-yn-Rhos | 15 June (trad.[20]) | Son ofIthel Hael | Disciple ofSaint Cadfan |
| Trunio | | | 29 June (trad.[20]) | | |
| Tudno | 6th century | Llandudno | 5 June (trad.[20]) | Son ofSeithenyn, king ofGwyddno | |
Tudglyd or Tudglud | 6th century | Llandudno Penmachno | 30 May (trad.[20]) | Son ofSeithenyn, king ofGwyddno | |
| Tudur | | | 14 or15 October (trad.[17]) | | |
| Tudwal | 5th century | | | Son ofHoel and cousin of the king ofDomnonee | Bishop |
| Twrog | 6th century | Bodwrog Maentwrog Llandwrog | 26 June (trad.[20]) | Son ofIthel Hael | |
| Tybie | 5th century | | 30 January (trad.[13]) | Daughter ofBrychan, king ofBrycheiniog | Virgin &martyr |
| Tydecho | | Llanymawddwy | 17 December (trad.[31]) | | |
| Tydfil | 5th century | Merthyr Tydfil | 23 August (trad.[26]) | Daughter ofBrychan, king ofBrycheiniog | Virgin &martyr |
| Tyfaelog | | | 26 February (trad.[13]) | | |
Tyfanog or Tauannauc | | | 25 November (trad.[16]) | | |
| Tyfriog | | | 1 May (trad.[20]) | | Abbot |
| Tyfrydog | 5th century | Llandyfrydog | 1 January (trad.[13]) | | |
| Tygwy | | | 13 January (trad.[13]) | | |
| Tyneio | 6th century | Llanfor | | Child ofSeithenyn, king ofGwyddno | |
| Tyrnog | | Landerneau (Brittany) | 4 or2 April or 26 Jun or Sept 25 (trad.[24][20][17]) | | |
Tysilio or Tyssilio | 7th century | Llandysilio | 8 or9 November (trad.[16]) | Son ofBrochwel Ysgithrog | Bishop |
| Tyssil | 7th century | Llandyssil | | | |
| Tyssul | | | 31 January or 3 Feb (trad.[13]) | | Bishop |
| Ufelwy | 6th century | Yhuel | | | Grandson ofGildas |
| Ulo | | Capelulo | | | |
| Umbrafel | | | | Son ofEmyr Llydaw | |
Urw or Wrw | | | 21 October (trad.[17]) | | Virgin |
| Ustig | | | | Child ofCaw, king ofStrathclyde | Associated with SaintsDyfrig andEldad |
| Urith | 8th century | | 8 July | | |
| Usyllt | 6th century | Tenby | | Descendant ofCunedda, king ofGwynedd | Father ofSaint Teilo |
| Veep | 5th century | St Veep (Cornwall) | | Daughter ofBrychan, king ofBrycheiniog | |
Vortimer or Gwrthefyr Fendigaid | 5th century | | | Descendant ofVortigern,king of Britain | "Vortimer the Blessed" King ofGwent Father ofMadrun |
| Weneppa | 6th century | Gwennap (Cornwall) | | Daughter ofCaw, king ofStrathclyde | |
| Winfrith | 6th century | | | | Bishop ofLichfield |
Winifred or Gwenfrewi or Gwenffrewi | 7th century | Holywell | 19 or20 December or 4 Nov (trad.[31][16]) 8 July[citation needed] | Descendant ofVortigern,king of Britain | Virgin &martyr Granddaughter ofSaint Teneu and niece ofSaint Beuno Herdecollation was frequently celebrated separately on 22 June.[20] Thetranslation of herrelics was frequently celebrated separately on 3 November.[16] |
| Wethenoc | 6th century | | | Great-grandson ofBrychan, king ofBrycheiniog | |
| Winwaloe | 6th century | | | Great-grandson ofBrychan, king ofBrycheiniog | |
| Wulvela | 6th century | | | | Sister of SaintsJuthwara andSidwell |
Ylched or Ulched | | Llechylched | 6 January or 9 May (trad.[13][20]) 6 April (Orth.) | | |
Ystyffan or Stephen | 6th century | Llansteffan | | Descendant ofVortigern,king of Britain | Associate ofSaint Teilo |