| 14621 | Ubachs | 1 | 1 | ||
| 14622 | Ubags | 1 | |||
| 14623 | Ubben | 1 | |||
| 14624 | Ubbink | 2 | |||
| 14625 | Ubeda | 1 | 1 | ||
| 14626 | Ubing | 1 | |||
| 14627 | Uden | van | 29 | 1 | |
| 14628 | Uelderink | 1 | |||
| 14629 | Uerlings | 1 | |||
| 14630 | Uffing | 1 | |||
| 14631 | Uffink | 1 | |||
| 14632 | Uggelen | van | 1 | ||
| 14633 | Uitdehaag | 1 | |||
| 14634 | Uitdewilligen | 1 | |||
| 14635 | Uitert | van | 2 | ||
| 14636 | Uiterwaal | 1 | |||
| 14637 | Uitregt | van | 1 | ||
| 14638 | Uittenhout | 1 | |||
| 14639 | Uitterhoeve | 1 | |||
| 14640 | Uitzetter | 1 | |||
| 14641 | Uljé | 1 | |||
| 14642 | Ulrich | 3 | |||
| 14643 | Ulyn | 1 | 1 | ||
| 14644 | Umlauf | 1 | |||
| 14645 | Ummels | 2 | |||
| 14646 | Umnenthun | 1 | |||
| 14647 | Unen | van | 1 | ||
| 14648 | Unger | 1 | |||
| 14649 | Ungruh | 1 | |||
| 14650 | Urlings | 2 | 1 | ||
| 14651 | Urselmann | 1 | |||
| 14652 | Usleeber | 1 | |||
| 14653 | Usmany | 1 | |||
| 14654 | Utberg | 1 | 1 | ||
| 14655 | Uuden | van | 2 | ||
| 14656 | Uuldriks | 1 | |||
| 14657 | Uum | van | 1 | ||
| 14658 | Uyen | 7 | 2 | ||
| 14659 | Uyen de Kleyn | 3 | |||
| 14660 | Uyland | 1 | |||
| 14661 | Uylen | 5 | |||
| 14662 | Uyt de Haag | 1 | |||
| 14663 | Uytdehage | 1 | |||
| 14664 | Uytdewilligen | 1 | |||
| 14665 | Uytregt | van | 2 | ||