| Name | Meanings | Gender | Origin |
|---|---|---|---|
| Adwen | very fair (an early saint) | Girl | Welsh |
| Aneirin | an early poet | Boy | Welsh |
| Angharad | beloved | Girl | Welsh |
| Arianell | silver (an early saint) | Girl | Welsh |
| Arianwen | silver-white (an early saint) | Girl | Welsh |
| Art | from Latin Artorius, legendary king | Boy | Welsh |
| Arthur | from Latin Artorius, legendary king | Boy | Welsh |
| Artie | from Latin Artorius, legendary king | Boy | Welsh |
| Branwen | white raven (legendary heroine) | Girl | Welsh |
| Bronwen | white breast | Girl | Welsh |
| Brynn | hill | Boy | Welsh |
| Cainell | beautiful | Girl | Welsh |
| Caradoc | beloved, kinsman | Boy | Welsh |
| Catrin | form of KATHERINE - pure | Girl | Welsh |
| Catylyn | form of KATHERINE - pure | Girl | Welsh |
| Ceindrech | beautiful sight | Girl | Welsh |
| Ceridwen | goddess of poetry | Girl | Welsh |
| Denyw | the mother of St. Kentigern | Girl | Welsh |
| Dewey | from Dewi, form of DAVID - beloved | Boy | Welsh |
| Dillen | precious thing | Girl | Welsh |
| Dilys | genuine | Girl | Welsh |
| Dwynwen | fair conduct (an early saint) | Girl | Welsh |
| Dylan | a legendary sea-hero | Boy | Welsh |
| Efa | form of EVE - life | Girl | Welsh |
| Elen | form of HELEN - bright one | Girl | Welsh |
| Eleyn | form of HELEN - bright one | Girl | Welsh |
| Eluned | Arthurian heroine | Girl | Welsh |
| Enid | Arthurian heroine | Girl | Welsh |
| Essyllt | gazed upon (Arthurian heroine) | Girl | Welsh |
| Evan | form of JOHN - God is gracious | Boy | Welsh |
| Fflur | flower (legendary heroine) | Girl | Welsh |
| Ffraid | form of BRIDGET - resolute strength | Girl | Welsh |
| Gareth | one of King Arthur's knights | Boy | Welsh |
| Gavin | one of King Arthur's knights | Boy | Welsh |
| Gladys | form of CLAUDIA - lame | Girl | Welsh |
| Goleu | light, bright (an early saint) | Girl | Welsh |
| Goleudydd | bright day | Girl | Welsh |
| Griffin | strong lord | Boy | Welsh |
| Guinevere | form of GWENHWYFAR - fair spirit | Girl | Welsh |
| Gwawr | dawn (an early saint) | Girl | Welsh |
| Gwen | fair, white | Girl | Welsh |
| Gwenddydd | fair day - in legend, the sister of Merlin | Girl | Welsh |
| Gwenhwyfar | fair spirit | Girl | Welsh |
| Gwenllian | fair flood | Girl | Welsh |
| Gwennor | form of GWENHWYFAR - fair spirit | Girl | Welsh |
| Gwyneth | uncertain, possibly from the placename Gwynedd | Girl | Welsh |
| Heledd | mentioned in early poetry | Girl | Welsh |
| Howell | prominent | Boy | Welsh |
| Hunydd | mentioned in early poetry | Girl | Welsh |
| Indeg | very fair (legendary heroine) | Girl | Welsh |