| # | Name | Origin | Meaning | Gender | Save |
|---|---|---|---|---|---|
| 1 | Farrel | Celtic | Brave. | M | |
| 2 | Farrell | Celtic | Brave. | M | |
| 3 | Fearghus | Celtic | Manly. | M | |
| 4 | Ferehar | Celtic | Mythical son of Uisneeh. | M | |
| 5 | Ferghus | Celtic | Manly. | M | |
| 6 | Fergus | Celtic | Manly. | M | |
| 7 | Ferris | Celtic | Rock. | M | |
| 8 | Fiacra | Celtic | Eagle. | M | |
| 9 | Fiacre | Celtic | Eagle. | M | |
| 10 | Finbar | Celtic | Blond. | M | |
| 11 | Finian | Celtic | Handsome. | M | |
| 12 | Finnbar | Celtic | Blond. | M | |
| 13 | Finnobarr | Celtic | Blond. | M | |
| 14 | Floyd | Celtic | Gray. | M | |
| 15 | Fynbar | Celtic | Blond. | M | |