| Adwen | very fair (an early saint) | Girl | Welsh |
| Arianwen | silver-white (an early saint) | Girl | Welsh |
| Branwen | white raven (legendary heroine) | Girl | Welsh |
| Denyw | the mother of St. Kentigern | Girl | Welsh |
| Dwynwen | fair conduct (an early saint) | Girl | Welsh |
| Elen | form of HELEN - bright one | Girl | Welsh |
| Eleyn | form of HELEN - bright one | Girl | Welsh |
| Essyllt | gazed upon (Arthurian heroine) | Girl | Welsh |
| Fflur | flower (legendary heroine) | Girl | Welsh |
| Ffraid | form of BRIDGET - resolute strength | Girl | Welsh |
| Goleu | light, bright (an early saint) | Girl | Welsh |
| Guinevere | form of GWENHWYFAR - fair spirit | Girl | Welsh |
| Gwenddydd | fair day - in legend, the sister of Merlin | 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 |
| Hunydd | mentioned in early poetry | Girl | Welsh |
| Indeg | very fair (legendary heroine) | Girl | Welsh |
| Lleyke | form of LLEUCU - dear light | Girl | Welsh |
| Llywelydd | form of Llywelyn - from the ancient gods Lugos and Belinos | Girl | Welsh |
| Luned | form of ELUNED - Arthurian heroine | Girl | Welsh |
| Marared | form of MARGARET - a pearl | Girl | Welsh |
| Marged | form of MARGARET - a pearl | Girl | Welsh |
| Megen | form of MARGARET - a pearl | Girl | Welsh |
| Morfudd | mentioned in early poetry | Girl | Welsh |
| Morgana | form of MORGAINE - sea-born | Girl | Welsh |