| Namn | Licens | Födelseår | Far | Mor | Morfar |
|---|---|---|---|---|---|
| Urtica | 219225 | 1995 | Bernstein | Magnolia | Hertigen |
| Urtimo | 973946 | 1987 | Ultimo | Pi | Parnass |
| Urtina | 94225 | 1968 | Urbino | Cortina | Corso |
| Uruss | 232979 | 2002 | Ursus 512 | Zitan 3732 | Orusst 433 |
| Urvine | 234826 | 2001 | Focus | Zilvia | Roemer |
| Urzak | 17601 | 1982 | Utrillo | Felicia | Flyinge Flamingo |
| Urzeline | 235218 | 2001 | Portanjo | Romanow | |
| Urzell | 5328 | 1975 | Ursus | Rozita | Vagabond |
| US Patton | 252701 | 2003 | |||
| US Sennerin VDL | 236841 | 2001 | Emillion | Le Ticia | Landgraf I |
| Us´leste | 251929 | 2001 | Dutchboy | Jurose | Ahoy |
| USA | 94481 | 1974 | Cyrano | Ultima | Rockad |
| Usain Bolt | 246924 | 2002 | Appraisal | Heather Ephony | Actinium |
| Usan Charmer | 3191 | 1976 | Kimble | Moygrey Lassie | Moycullen Dan |
| Usan Duke | 1972 | 1977 | Holens Ingolf | Lamber Dream | Murrisk |
| Usec | 239917 | 1998 | Ustinow | My Lady II | Monjul |
| Useppo | 238627 | 2001 | Larino | Helene | Mytens |
| Ushi | 234718 | 2001 | Aram | Pe´felisha | Kupido K |
| Ushi | 248437 | 2001 | Pierrot | Riyocha | Welt Hit II |
| Ushi | 248963 | 2001 | Zortin | Rieta | Bustron |
| Ushi | 248498 | 2001 | Oliver | Bella | |
| Ushuaia | 242747 | 1997 | Heartbreaker | Inka | Altisud |
| Usina | 48153 | 1980 | Sombrero | Usetta | Ursus |
| Usita | 986034 | 1991 | Uttini | Carusita | Caruso |
| Uskaia | 202247 | 1996 | Uskudar des Malais | Vanessa (52) | Voltaire 356 Wpn |
| Uskudar des Malais | 15627 | 1986 | Jalisco B | Kadievka | Uriel |
| Usma | 237773 | 2001 | Zuidpool | Esma | Satelliet |
| Usnova | 241414 | 2001 | Ohorn | Layka | Ekstein |
| Ussul | 236061 | 1993 | Ussuri xx | Sulrina | Sultan |
| Ustalone | 222426 | 1997 |