| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 381 | Ferghus | Celtic | Manly. | M | |
| 382 | Fergus | Celtic | Manly. | M | |
| 383 | Ferris | Celtic | Rock. | M | |
| 384 | Fiacra | Celtic | Eagle. | M | |
| 385 | Fiacre | Celtic | Eagle. | M | |
| 386 | Fianna | Celtic | Legendsry tale. | F | |
| 387 | Finbar | Celtic | Blond. | M | |
| 388 | Findabair | Celtic | Mythical daughter of Medb. | F | |
| 389 | Fingula | Celtic | Mythical daughter of Lyr. | F | |
| 390 | Finian | Celtic | Handsome. | M | |
| 391 | Finnbar | Celtic | Blond. | M | |
| 392 | Finnobarr | Celtic | Blond. | M | |
| 393 | Fiona | Celtic | White or comely. | F | |
| 394 | Floyd | Celtic | Gray. | M | |
| 395 | Fynbar | Celtic | Blond. | M | |
| 396 | Gall | Celtic | Stranger. | M | |
| 397 | Galvin | Celtic | Sparrow. | M | |
| 398 | Galvyn | Celtic | Sparrow. | M | |
| 399 | Gawain | Celtic | From Arthurian legend. | M | |
| 400 | Genevieve | Celtic | White wave. | F | |