| Namn | Licens | Födelseår | Far | Mor | Morfar |
|---|---|---|---|---|---|
| Optron xx | 225922 | 1992 | Saphir | Opuszka | Babant |
| Opulus | 18955 | 1988 | Ciceron | Nemorosa II | Happy Day |
| Opus | 14477 | 1983 | Langos | Unesca | Unesco |
| Opus | 1519 | 1979 | Oden | Golda Meir | Goldfinger |
| Opus | 19419 | 1969 | Optimist | Chanteclair | |
| Opus | 46982 | 1981 | Kew Gardens | Tymira | Ouvertyr |
| Opus | 3872 | 1976 | Cyrano | Annjara | Ceylon |
| Opus | 12658 | 1983 | Amadeus | Eva | Trafalgar |
| Opus | 13793 | 1984 | Orust | Caprice | Cyrano |
| Opus | 20901 | 1985 | Orust | Pebbles | Abbe |
| Opus | 955688 | 1988 | Amadeus | Sonette | Callaghan |
| Opus | 999575 | 1993 | Opius | Martina (33) | Martini |
| Opus | 217936 | 1996 | Burggraaf | Carettie | Tolad |
| Opus | 223522 | 1994 | Miclas Micado RNF | Karbina RNF | Strätes Karbin RNF |
| Opus | 225906 | 1995 | |||
| Opus F | 986451 | 1994 | Beach Boy | Patricia | Partisan |
| Opus One | 1987 | Pontus | Olga | Wels Fireman | |
| Opus One | 200952 | 1995 | Beach Boy | Caterpillar | Le Mexico |
| Opus One | 10298 | 1987 | Pontus | Eendenkooi Olga | Wels Fireman |
| Opus Q | 967380 | 1990 | Little Q | Operette | Optimist |
| Oquline | 973643 | 1991 | Little Q | Orkidee | Trainers Seat xx |
| Ora | 224146 | 1996 | Corlando (ex Corland) | Tea Langmose | Aspirant |
| Orage | 243342 | 2003 | |||
| Orakel | 202749 | 1996 | Helwan | Macierzanka | |
| Oralie | 234069 | 1996 | Naturel | Joralie | Emilion |
| Oramax SP 4 | 256597 | 2005 | Orame | Maybe | Tammerfors xx |
| ORami | 15653 | 1984 | Raimondo | O'Brien | |
| Oran | 15872 | 1985 | Grossist | Odyssee | Hambert |
| Oran | 218270 | 1996 | Impuls | Wilna | Irak |
| Orana | 18156 | 1982 | Pontus | Toscana | Ganesco |