| Firdaws | - | Muslim Name | Firdevs | - | Turkish Name |
| Firdos | - | Algerian Name | FIRDOS | - | Muslim Name |
| Firdous | - | Muslim Name | Firdowsa | - | Muslim Name |
| Firenze | - | Hungarian Name | Firman | - | Anglo Name |
| Firmin | - | Cyprien Name | Firmino | - | Portuguese Name |
| Firona | - | Phoenician Name | FIROZ | - | Muslim Name |
| Firoz | - | Indian Name | Firoza | - | Indian Name |
| Firth | - | Scottish Name | Firtha | - | Scottish Name |
| Firuz | - | Turkish Name | Firuzan | - | Turkish Name |
| Firuze | - | Turkish Name | Fischer | - | German Name |
| Fischl | - | Yiddish Name | Fishel | - | Yiddish Name |
| Fisher | - | United States Name | Fisher | - | English Name |
| Fishke | - | Yiddish Name | Fisi | - | Maori Name |
| Fiso | - | Maori Name | Fitalik | - | Eskimo Name |
| Fitnat | - | Turkish Name | Fitri | - | Indonesian Name |
| Fitria | - | Indonesian Name | Fitriah | - | Indonesian Name |
| Fitu | - | Maori Name | Fitz | - | Teutonic Name |
| Fitzalbert | - | West Indies Name | Fitzgerald | - | West Indies Name |
| Fitzhenry | - | West Indies Name | Fitzhugh | - | United States Name |
| Fitzpatrick | - | United States Name | Fitzroy | - | West Indies Name |
| Fiu | - | Maori Name | Fiva | - | Maori Name |
| Fivaola | - | Maori Name | Fivel | - | Yiddish Name |
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