Achternamen
| Achternaam | Aantal |
|---|---|
| Ubachs | 150 |
| Ubaghs | 52 |
| Ubags | 36 |
| Ubben | 30 |
| Ubbink | 3 |
| Ubels | 1 |
| Ubink | 3 |
| Ubnags | 1 |
| Ucher | 1 |
| Uden, van | 38 |
| Udo | 1 |
| Uebach | 1 |
| Uebachs | 3 |
| Ueberbach | 8 |
| Uede, van | 1 |
| Ueffing | 1 |
| Uelderink | 1 |
| Uem, van | 1 |
| Uerlings | 2 |
| Uffelen, van | 6 |
| Uffelie | 1 |
| Uffelt, van | 1 |
| Uffing | 2 |
| Uffink | 6 |
| Uggelen, van | 1 |
| Uhlenbruch | 2 |
| Uijen | 2 |
| Uijens | 1 |
| Uijl, den | 1 |
| Uijtdewilligen | 1 |
| Uijtenhaak | 1 |
| Uijtert, van | 3 |
| Uijtjens | 2 |
| Uijttenhout | 1 |
| Uijttewaal | 3 |
| Uil | 1 |
| Uilenbroek | 1 |
| Uilkens | 1 |
| Uink | 1 |
| Uitdewilligen | 1 |
| Uitenbroek | 1 |
| Uitendaal | 2 |
| Uitert, van | 1 |
| Uiterwaal | 2 |
| Uiterweer | 1 |
| Uiterwijk | 1 |
| Uitewaal | 2 |
| Uithoven | 1 |
| Uitslag | 1 |
| Uittebroek | 1 |
| Uittenhout | 2 |
| Uitterhaegen | 1 |
| Uitterhoeve | 3 |
| Uittewaal | 1 |
| Uitzetter | 1 |
| Uland | 1 |
| Ulburghs | 3 |
| Ulcnik | 1 |
| Ulden, van | 1 |
| Ulder | 1 |
| Ulehake | 2 |
| Ulen | 3 |
| Ulenaers | 4 |
| Uleners | 1 |
| Ulens | 2 |
| Ulft, van | 13 |
| Ulijn | 2 |
| Ulkeman | 2 |
| Ulleman | 2 |
| Ullenbroeck | 1 |
| Ullenbroek | 1 |
| Ullings | 1 |
| Ulrich | 7 |
| Ulrichts | 2 |
| Ulrici | 1 |
| Ulrix | 1 |
| Ulsek | 1 |
| Ultee | 1 |
| Um | 1 |
| Umans | 3 |
| Umbach | 1 |
| Umbrosius | 1 |
| Ummelen | 5 |
| Ummels | 84 |
| Ummenthum | 5 |
| Ummenthun | 7 |
| Ummethum | 1 |
| Unen, van | 4 |
| Unger | 3 |
| Ungerechts | 1 |
| Ungerer | 1 |
| Ungruh | 1 |
| Unkel | 1 |
| Unlandt | 1 |
| Unruh | 1 |
| Unsinn | 1 |
| Untersander | 1 |
| Unverzagt | 1 |
| Uphof | 2 |
| Uphus | 1 |
| Uran | 1 |
| Urban | 1 |
| Ureel | 2 |
| Urff | 3 |
| Urlings | 101 |
| Urlus | 1 |
| Ursel, van | 2 |
| Urselamnn | 1 |
| Urselman | 1 |
| Urselmann | 3 |
| Ursem | 2 |
| Ursic | 2 |
| Ursinus | 2 |
| Us | 1 |
| Usai | 1 |
| Usé | 1 |
| Usleeber | 1 |
| Uten | 1 |
| Utens | 13 |
| Utzerath | 1 |
| Uuldriks | 1 |
| Uum, van | 5 |
| Uurlings | 1 |
| Uyl, den | 1 |
| Uylen | 1 |
| Uylings | 2 |
| Uytdehage | 1 |
| Uytdenhouwen | 2 |
| Uytdewilligen | 5 |
| Uytenbroeck | 1 |
| Uytenhouwen | 2 |
| Uytenhove | 1 |
| Uytfanghe, van | 1 |
| Uytgeerts | 1 |
| Uyting | 2 |
| Uytsel, van | 1 |
| Uyttebroek | 1 |
| Uyttendaele | 2 |
| Uyttenhove | 2 |
| Uyttewaal | 4 |
| Uytvange, van | 1 |