| Adwen | very fair (an early saint) | Menina | Welsh |
| Arianwen | silver-white (an early saint) | Menina | Welsh |
| Art | from Latin Artorius, legendary king | Menino | Welsh |
| Arthur | from Latin Artorius, legendary king | Menino | Welsh |
| Artie | from Latin Artorius, legendary king | Menino | Welsh |
| Branwen | white raven (legendary heroine) | Menina | Welsh |
| Denyw | the mother of St. Kentigern | Menina | Welsh |
| Dewey | from Dewi, form of DAVID - beloved | Menino | Welsh |
| Dwynwen | fair conduct (an early saint) | Menina | Welsh |
| Elen | form of HELEN - bright one | Menina | Welsh |
| Eleyn | form of HELEN - bright one | Menina | Welsh |
| Essyllt | gazed upon (Arthurian heroine) | Menina | Welsh |
| Evan | form of JOHN - God is gracious | Menino | Welsh |
| Fflur | flower (legendary heroine) | Menina | Welsh |
| Ffraid | form of BRIDGET - resolute strength | Menina | Welsh |
| Gareth | one of King Arthur's knights | Menino | Welsh |
| Gavin | one of King Arthur's knights | Menino | Welsh |
| Goleu | light, bright (an early saint) | Menina | Welsh |
| Guinevere | form of GWENHWYFAR - fair spirit | Menina | Welsh |
| Gwenddydd | fair day - in legend, the sister of Merlin | Menina | Welsh |
| Gwennor | form of GWENHWYFAR - fair spirit | Menina | Welsh |
| Gwyneth | uncertain, possibly from the placename Gwynedd | Menina | Welsh |
| Heledd | mentioned in early poetry | Menina | Welsh |
| Hunydd | mentioned in early poetry | Menina | Welsh |
| Indeg | very fair (legendary heroine) | Menina | Welsh |