| Name | # Entries |
|---|---|
| Ugur | 30 |
| Ueda | 29 |
| Uribe | 28 |
| Urbina | 28 |
| Unterrheiner | 28 |
| Udovicic | 28 |
| Ulmer | 27 |
| Uong | 27 |
| Uniacke | 26 |
| Upreti | 25 |
| Urlich | 25 |
| Uprichard | 25 |
| Ulbrich | 25 |
| Umali | 24 |
| Ulph | 24 |
| Upjohn | 24 |
| Upadhyaya | 24 |
| Ulyatt | 24 |
| Ullrich | 24 |
| Ufer | 24 |
| Uhlhorn | 24 |
| Urso | 24 |
| Upfold | 23 |
| Uther | 23 |
| Uzun | 23 |
| Ukich | 23 |
| Underwoods | 23 |
| Urosevic | 22 |
| Ulloa | 22 |
| Uelese | 22 |
| Uptin | 22 |
| Uprety | 22 |
| Urbas | 21 |
| Unstead | 21 |
| Uva | 21 |
| Uyen | 21 |
| Unkles | 20 |
| Urane | 20 |
| Utteridge | 20 |
| Ungaro | 20 |
| Ursini | 20 |
| Uncles | 20 |
| Uno | 20 |
| Urie | 20 |
| Utama | 19 |
| Utai | 19 |
| Uhl | 19 |
| Ulbrick | 19 |
| Urbani | 19 |
| Ussia | 19 |
| Uniting | 19 |
| Uchida | 19 |
| Utomo | 19 |
| Ungar | 19 |
| Ulman | 19 |
| Ueno | 18 |
| Ursich | 18 |
| U | 18 |
| Ulett | 18 |
| Unasa | 18 |
| Uppill | 18 |
| Unitt | 17 |
| Umer | 17 |
| Unknown | 17 |
| Urbancic | 17 |
| Uhle | 17 |
| Uildriks | 17 |
| Ulugia | 17 |
| Ubiparipovic | 17 |
| Upsall | 17 |
| Uk | 16 |
| Urmston | 16 |
| Ucar | 16 |
| Uthayakumar | 16 |
| Uwland | 16 |