Starting with letter F
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 521 | Fitz Gilbert | English | Son of Gilbert. | M | |
| 522 | Fitz Hugh | English | Son of Hugh. | M | |
| 523 | Fitz James | English | Son of James. | M | |
| 524 | Fitz Patrick | English | Son of Patrick. | M | |
| 525 | Fitz Patrick | Teutonic | Son of Patrick. | M | |
| 526 | Fitz Simon | English | Son of Simon. | M | |
| 527 | Fitz Walter | English | Son of Walter. | M | |
| 528 | Fitz Water | English | Son of Walter. | M | |
| 529 | Fitzadam | English | Son of Adam. | M | |
| 530 | Fitzgerald | English | Mighty spearholder's son. | M | |
| 531 | Fitzgerald | French | Son of Gerald. Surname. | M | |
| 532 | Fitzgerald | Irish | Surname. | M | |
| 533 | Fitzgerald | Teutonic | Son of Gerald. | M | |
| 534 | Fitzgibbon | English | Son of Gilbert. | M | |
| 535 | Fitzgilbert | English | Son of Gilbert. | M | |
| 536 | Fitzhugh | English | Son of Hugh. | M | |
| 537 | Fitzhugh | French | Son of Hugh. Surname. | M | |
| 538 | Fitzhugh | German | Intelligent man's son. | M | |
| 539 | Fitzjames | English | Son of James. | M | |
| 540 | Fitzpatrick | English | Son of Patrick. Surname. | M | |