| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 581 | Fahey | Irish | From the green field. | M | |
| 582 | Fahy | Irish | From the green field. | M | |
| 583 | FaIIon | Irish | Ruler. | M | |
| 584 | Fallamhain | Irish | Ruler. | M | |
| 585 | Fallon | Irish | Surname. | M | |
| 586 | Faolan | Irish | Small wolf. | M | |
| 587 | Farall | Irish | Variant of Farrell: Brave man. | M | |
| 588 | Fardoragh | Irish | Dark-skinned man. | M | |
| 589 | Farill | Irish | Variant of Farrell: Brave man. | M | |
| 590 | Farran | Irish | The land. | M | |
| 591 | Farrel | Irish | Brave. | M | |
| 592 | Farrell | Irish | Brave man. | M | |
| 593 | Farren | Irish | The land. | M | |
| 594 | Farrin | Irish | The land. | M | |
| 595 | Farry | Irish | Manly. | M | |
| 596 | Farryl | Irish | Variant of Farrell: Brave man. | M | |
| 597 | Fay | Irish | Raven. | M | |
| 598 | Feagh | Irish | Raven. | M | |
| 599 | Fearadhach | Irish | Manly; masculine. | M | |
| 600 | Feardorcha | Irish | Variant of Fardoragh: Dark-skinned man. | M | |