| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 321 | Edern | Welsh | Legendary son of Nudd. | M | |
| 322 | Edmyg | Welsh | Honor. | M | |
| 323 | Efa | Welsh | Welsh form of Eve, meaning life. | F | |
| 324 | Eheubryd | Welsh | Legendary daughter of KyvwIch. | F | |
| 325 | Eiddoel | Welsh | Legendary son of Ner. | M | |
| 326 | Eifion | Welsh | Welsh surname. | M | |
| 327 | Eiladar | Welsh | Legendary son of Penn Llarcan. | M | |
| 328 | Eiluned | Welsh | From 'cilun' meaning idol. | F | |
| 329 | Eilwen | Welsh | Fair brow. | F | |
| 330 | Eilwen | Welsh | Variant of Eilwyn: White-browed. | M | |
| 331 | Eilwyn | Welsh | White-browed. | M | |
| 332 | Einian | Welsh | Anvil. | M | |
| 333 | Einion | Welsh | Anvil. | M | |
| 334 | Einwys | Welsh | Variant of Einion: Anvil. | M | |
| 335 | Eira | Welsh | Snow. | F | |
| 336 | Eirian | Welsh | Silver. | F | |
| 337 | Elain | Welsh | Fawn. | F | |
| 338 | Elen | Welsh | Welsh forrn of Helen. | F | |
| 339 | Elin | Welsh | Variant of Helen. Means light or most beautiful woman. | F | |
| 340 | Elined | Welsh | From 'cilun' meaning idol. | F | |