| Namn | Licens | Födelseår | Far | Mor | Morfar |
|---|---|---|---|---|---|
| Opi | 11145 | 1978 | Oden | Pi | Parnass |
| O Piccolino | 974635 | 1992 | Feldhofs Orator | Feldhofs Maja | Vernons Vinyard |
| Opienne | 999466 | 1995 | Opius | Marina | Maraton |
| O Pierrot | 216236 | 1996 | Ahorn | Therese | Marco Polo |
| Opina | 987336 | 1993 | Opius | Ulla-Bella | Jocer |
| Opinionated | 955141 | 1988 | Shernazar | Melodramatic | Tudor Melody |
| Opium | 221491 | 1996 | Rebel Z | Alpha | Gibraltar |
| Opium | 202075 | 1994 | Opius | Aljett | Jaguar |
| Opium | 220265 | 1996 | Boreas | Hegrid | Vasco |
| Opium | 1957 | Varolio | Julienne | Heristal | |
| Opium | 25094 | 1982 | Guvernör | Torboldt | |
| Opium | 2157 | 1980 | Optimist | Trollmor | Jovial |
| Opium | 254973 | 2003 | Wetano | Helxine | Herkules |
| Opium Court | 7147 | 1983 | Lane Court xx | Opium Drayane | Optimist |
| Opium Drayane | 1976 | Optimist | Volga | ||
| Opium IV | 240330 | 1996 | Burggraaf | Kirsinaa | Nimmerdor |
| Opius | 22010 | 1988 | Stanford | Corina | Caracas |
| Op Man | 245448 | 2004 | Weltman | Net Op (59) (SWB) | Nocturne |
| Oporto | 12286 | 1983 | |||
| Oportos Orkan | 1972 | Portos | Orkan | ||
| Oportuno | 229910 | 1995 | Devorante | Brasa | Onjito |
| Opperdoes | 216195 | 1996 | Inspekteur | Coket | Valckmar |
| Opponent | 6880 | 1978 | Karlsdal | Furie | Polarstern |
| Opportunity Nox | 222758 | 1998 | Time of Flight | Firm Decision | Fast Frigate xx |
| Oprah | 202070 | 1997 | Corrado WL | Ofelia (8) | Furidant |
| Oprah | 232521 | 2002 | Oldtimer | Amelia | Amiral |
| Opstalans Chanell | 216152 | 1990 | Charmeur | ||
| Opstalans Flesche Rouge | 215185 | 1993 | Papillon Rouge | Utopie Rouge II | Kissovo |
| Opstalans Medline | 215186 | 1989 | Fleuri du Manoir | Wetteifernde | |
| Opstalans Roofs | 1990 | Caletto I | Lisene |