| Flavius | | - | Ancient Roman | |
| Flora | | FLAWR-ə (English), FLO-rah (German) | English, German, Italian, Roman Mythology | |
| Florentia | | - | Late Roman | |
| Florentina | | - | Spanish, Late Roman | |
| Florentinus | | - | Late Roman | |
| Florentius | | - | Late Roman | |
| Floriana | | - | Italian, Ancient Roman | |
| Florianus | | - | Ancient Roman | |
| Florin | | flo-REEN | Romanian | |
| Florina | | - | Romanian, Spanish, Dutch, Late Roman | |
| Florinus | | - | Late Roman | |
| Florus | | - | Ancient Roman | |
| Fortunata | | - | Italian, Spanish, Portuguese, Late Roman | |
| Fortunatus | | - | Late Roman | |
| Francisca | | frahn-THEES-kah (Spanish), frahn-SEES-kah (Latin American Spanish), frən-SEESH-kə (Portuguese) | Spanish, Portuguese, Late Roman | |