| Fereydoun | | - | Persian, Persian Mythology | |
| Fergus | | FUR-gəs (English) | Irish, Scottish, Irish Mythology | |
| Fiachra | | FEE-akh-ra | Irish, Irish Mythology | |
| Finn (1) | | - | Irish Mythology, Irish | |
| Finnguala | | - | Irish, Irish Mythology | |
| Finnuala | | - | Irish, Irish Mythology | |
| Fintan | | FIN-tan (Irish) | Irish, Irish Mythology | |
| Fionn | | FIN, FYOON | Irish, Irish Mythology | |
| Fionnghuala | | - | Irish, Scottish, Irish Mythology | |
| Fionnuala | | - | Irish, Irish Mythology | |
| Flora | | FLAWR-ə (English), FLO-rah (German) | English, German, Italian, Roman Mythology | |
| Frea | | - | Norse Mythology | |
| Frey | | FRAY | Norse Mythology | |
| Freya | | FRAY-ah (Norse Mythology), FRAY-ə (English) | Norse Mythology, English (British, Modern) | |
| Freyja | | FRAY-ah (Norse Mythology) | Icelandic, Norse Mythology | |