| Name | Sex | Language | Meaning(s) | Original Spelling | Notes |
|---|
| Andras | Male | Welsh 50 names | Meaning(s) of Andras: Manly 11 names Warrior 62 names | | Welsh form of Andrew. |
| Berwyn | Male | Welsh 50 names | Meaning(s) of Berwyn: Fair-skinned 41 names White 32 names | | |
| Betrys | Female | Welsh 50 names | Meaning(s) of Betrys: One Who Blesses Others 4 names Voyager 4 names | | Welsh form of Beatrice. |
| Branwen | Female | Welsh 50 names | Meaning(s) of Branwen: Blessed Raven 1 names White Raven 1 names | | |
| Bronwen | Female | Welsh 50 names | Meaning(s) of Bronwen: Blessed 182 names Fair-skinned 41 names | | Literally "fair-breasted". |
| Brychan | Male | Welsh 50 names | Meaning(s) of Brychan: Speckled 1 names | | |
| Bryn | Male | Welsh 50 names | Meaning(s) of Bryn: Hill 2 names | | |
| Brynmor | Male | Welsh 50 names | Meaning(s) of Brynmor: Large Hill 1 names | | Originally the name of a place in north-west Wales. |
| Caerwyn | Male | Welsh 50 names | Meaning(s) of Caerwyn: Blessed Love 2 names Holy Love 2 names | | Altered form of Carwyn. |
| Carwyn | Male | Welsh 50 names | Meaning(s) of Carwyn: Blessed Love 2 names Holy Love 2 names | | |
| Carys | Female | Welsh 50 names | Meaning(s) of Carys: Beloved 95 names Loving 33 names | | |
| Catrin | Female | Welsh 50 names | Meaning(s) of Catrin: Pure 180 names | | Welsh form of Katherine. |
| Ceinwen | Female | Welsh 50 names | Meaning(s) of Ceinwen: Blessed 182 names Lovely 12 names White 32 names | | |
| Dai | Male | Welsh 50 names | Meaning(s) of Dai: Beloved 95 names | | Welsh pet form of David. Originally of a different origin meaning "to shine". |
| Delwyn | Female | Welsh 50 names | Meaning(s) of Delwyn: Blessed 182 names Pretty 6 names White 32 names | | |
| Delyth | Female | Welsh 50 names | Meaning(s) of Delyth: Pretty 6 names | | |
| Dewi | Female | Welsh 50 names | Meaning(s) of Dewi: Beloved 95 names | | A Welsh form of David. |
| Dilwen | Female | Welsh 50 names | Meaning(s) of Dilwen: Genuinely Blessed 2 names | | |
| Dilwyn | Female | Welsh 50 names | Meaning(s) of Dilwyn: Genuinely Blessed 2 names White 32 names | | |
| Dilys | Female | Welsh 50 names | Meaning(s) of Dilys: Genuine 1 names Steadfast 10 names | | |
| Einion | Male | Welsh 50 names | Meaning(s) of Einion: Anvil 1 names | | |
| Eira | Female | Welsh 50 names | Meaning(s) of Eira: Snow 4 names | | |
| Eirwen | Female | Welsh 50 names | Meaning(s) of Eirwen: Blessed Snow 1 names White Snow 1 names | | |
| Elen | Female | Welsh 50 names | Meaning(s) of Elen: Shining Light 30 names | | Welsh form of Helen. |
| Elin | Female | Welsh 50 names | Meaning(s) of Elin: Shining Light 30 names | | Variant of the name Elen. |
| Emyr | Male | Welsh 50 names | Meaning(s) of Emyr: King 20 names Lord 17 names Ruler 24 names | | |
| Enfys | Female | Welsh 50 names | Meaning(s) of Enfys: Rainbow 1 names | | |
| Evan | Male | Welsh 50 names | Meaning(s) of Evan: God is Gracious 27 names | | Originally form John. |
| Mair | Female | Welsh 50 names | Meaning(s) of Mair: Drop of the Sea 42 names | | Welsh form of Mary. |
| Mari | Female | Welsh 50 names | Meaning(s) of Mari: Drop of the Sea 42 names | | Welsh form of Mary. |
| Megan | Female | Welsh 50 names | Meaning(s) of Megan: Pearl 41 names | | Pet form of Meg. |
| Meical | Male | Welsh 50 names | Meaning(s) of Meical: Who is Like God? 12 names | | Welsh form of Michael. |
| Meilyr | Male | Welsh 50 names | Meaning(s) of Meilyr: Chief 62 names Ruler 24 names | | |
| Meinwen | Female | Welsh 50 names | Meaning(s) of Meinwen: Fair-skinned 41 names Slender 15 names White 32 names | | |
| Mererid | Female | Welsh 50 names | Meaning(s) of Mererid: Pearl 41 names | | Form of Margaret. |
| Morwenna | Female | Cornish 1 names Welsh 50 names | Meaning(s) of Morwenna: Maiden 1 names | | |
| Moss | Male | Welsh 50 names | Meaning(s) of Moss: Moss Settlement 2 names | | Short form of Mostyn. |
| Mostyn | Male | Welsh 50 names | Meaning(s) of Mostyn: Moss Settlement 2 names | | |
| Olwen | Female | Welsh 50 names | Meaning(s) of Olwen: One Whose Footprint is Blessed 1 names One Whose Footprint is White 1 names | | |
| Pedr | Male | Welsh 50 names | Meaning(s) of Pedr: Rock 34 names Stone 19 names | | |
| Rhonwen | Female | Welsh 50 names | Meaning(s) of Rhonwen: White Lance 1 names White-haired 3 names | | |
| Rhys | Female | Welsh 50 names | Meaning(s) of Rhys: Ardor 1 names | | |
| Sawyl | Male | Welsh 50 names | Meaning(s) of Sawyl: He (God) Has Hearkened 5 names | | Welsh form of Samuel. |
| Siarl | Male | Welsh 50 names | Meaning(s) of Siarl: Free Man 11 names | | Welsh form of Charles. |
| Steffan | Male | Welsh 50 names | Meaning(s) of Steffan: Crown 31 names Garland 26 names | | Welsh form of Steffan. |
| Tegwen | Female | Welsh 50 names | Meaning(s) of Tegwen: Blessed 182 names Fair-skinned 41 names Lovely 12 names | | |
| Tomos | Male | Welsh 50 names | Meaning(s) of Tomos: Twin 8 names | | Welsh form of Thomas. |
| Trevor | Male | Welsh 50 names | Meaning(s) of Trevor: Large Settlement 1 names | | From a Welsh surname, from various place names. |
| Vaughan | Male | English 773 names Welsh 50 names | Meaning(s) of Vaughan: Small 14 names | | |
| Wyn | Male | Welsh 50 names | Meaning(s) of Wyn: Blessed 182 names White 32 names | | |
