| FÉLix | | FE-leeks (Portuguese) | French, Spanish, Portuguese | |
| FÚLvio | | - | Portuguese (Brazilian) | |
| Fabiana | | fah-BYAH-nah (Italian) | Italian, Spanish, Portuguese, Ancient Roman | |
| Fabiano | | fah-BYAH-no (Italian) | Italian, Portuguese | |
| Fabricio | | - | Spanish, Portuguese | |
| Faustino | | - | Spanish, Italian, Portuguese | |
| Fausto | | - | Italian, Spanish, Portuguese | |
| FelÍCia | | - | Hungarian, Portuguese | |
| Feliciano | | fe-lee-CHYAH-no (Italian), fe-lee-THYAH-no (Spanish), fe-lee-SYAH-no (Latin American Spanish) | Italian, Spanish, Portuguese | |
| Felicidade | | - | Portuguese | |
| Felipe | | fe-LEE-pe (Spanish) | Spanish, Portuguese (Brazilian) | |
| Felipinho | | - | Portuguese (Brazilian) | |
| FernÃO | | - | Portuguese | |
| Fernanda | | fer-NAHN-dah (Spanish) | Spanish, Portuguese, Italian | |
| Fernando | | fer-NAHN-do (Spanish) | Spanish, Portuguese | |