| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Enda | - | Irish | ||
| Ennis | - | Irish | ||
| Enya | EN-ya | Irish | ||
| Eoghan | O-in (Irish, Scottish), YO-in (Irish, Scottish) | Irish, Scottish, Irish Mythology | ||
| Eoin | O-in | Irish, Scottish | ||
| Erin | ER-in | English, Irish | ||
| Erskine | UR-skien | Scottish, Irish, English (Rare) | ||
| Ethna | - | Irish | ||
| Ethne | - | Irish | ||
| Etna | - | Irish | ||
| FÁElÁN | - | Ancient Irish | ||
| FÍOna | - | Irish | ||
| Fachtna | FAKHT-na | Irish, Irish Mythology | ||
| FaolÁN | FWAY-lahn | Irish | ||
| Farquhar | - | Irish, Scottish |