| Naam | Aantal | Naam | Aantal |
|---|
| Uitvlugt, van de | 5 | Unkel | 2 |
| Uitzetter | 28 | Unland | 1 |
| Uivel | 2 | Untey | 1 |
| Ukema | 1 | Upper | 4 |
| Ulden, van | 1 | Urbaan | 1 |
| Ulderink | 4 | Urbach | 2 |
| Ulderinks | 1 | Urcem | 1 |
| Uldriks | 1 | Urchard | 2 |
| Uleman | 8 | Urepoel | 1 |
| Ulen | 7 | Urgert | 2 |
| Ulenreef | 1 | Uri | 6 |
| Ulfen | 4 | Urias | 1 |
| Ulft, van | 2 | Urich | 2 |
| Ulhorn | 1 | Uriot | 1 |
| Ulijn | 2 | Urk, van | 50 |
| Uljee | 7 | Urk of ten Toorn, van | 1 |
| Ullers | 1 | Urk, Toorn of van Toorn, van | 1 |
| Ullm | 2 | Urlettig | 1 |
| Ulm | 1 | Ursem | 3 |
| Ulm, van | 1 | Usener | 3 |
| Ulmer | 2 | Using | 1 |
| Ulot | 2 | Usleeber | 1 |
| Ulphen, van | 1 | Usner | 1 |
| Ulrich | 5 | Ussen, van | 3 |
| Ulrich of Usleeber | 2 | Uswald | 3 |
| Ulrix | 2 | Utberg | 10 |
| Ulsen, van | 3 | Uterwijk | 2 |
| Ulst, van | 3 | Utger | 1 |
| Ultee | 2 | Uticoven | 1 |
| Ultzen | 3 | Utijn of Hustein | 1 |
| Ulzen, van | 2 | Utker | 1 |
| Umans | 4 | Utten | 1 |
| Ummelen | 1 | Uulders | 6 |
| Uneken | 4 | Uum, van | 5 |
| Unen, van | 32 | Uunen, van | 2 |
| Unenhoven | 1 | Uwens | 1 |
| Unger | 3 | Uxum, van | 1 |
| Ungerechts | 1 | Uyterhoeven | 2 |
| Unink | 1 | Uyttenboogaart | 1 |
| Unk | 1 | Uytwerf Sterling | 1 |
