| Namn | Licens | Födelseår | Far | Mor | Morfar |
|---|---|---|---|---|---|
| Osmin | 9449 | 1978 | Kardell | Ouchy | Utrillo |
| Osofin | 16799 | 1968 | Dawson | Pyret | Ravello |
| Osofin | 214066 | 1997 | Cortez | Solinette (23) | Warrigall |
| Osofin | 996865 | 1993 | Hagens Lance RC | Cait II | Värnbergs Neptunus RC |
| Osofina | 900779 | 1975 | Gondoljär | Nehru | |
| O Sole Mio | 987262 | 1994 | Sunshine Prince | Mynta | Mowgli |
| Osram | 987804 | 1994 | Beach Boy | Olivia | Indus |
| Osselet de Blondel | 237443 | 2002 | Desir de Chateau | Phedra Rateliere | Belpheger IV |
| Ossi | 200111 | 1996 | Opius | Lissi (42) | Pascal |
| Ossian | 17230 | 1986 | Orust | Bianka | Bonaparte |
| Ossian | 985998 | 1992 | Balans RWR | Manda | |
| Ossian | 225346 | 2000 | Cagliostro | Sweet Bird xx | Streak xx |
| Ossian Anubis | 218837 | 1985 | |||
| Ossory Hill Star | 200683 | 1991 | |||
| Östanvind | 90805 | 1974 | Cawdor Hywel | Benedikte | Stoatley Pride |
| Ostara | 213257 | 1996 | Golden Grannus | Crista | Wagner |
| Ostara | 257983 | 1998 | |||
| Osten | 4300 | 1981 | Saturn | Ograna | Nikifon PO |
| Östen | 987665 | 1992 | Romeo | Ironi | Prokaznik ox |
| Östen | 942355 | 1985 | |||
| Osterblüme | 245144 | 1998 | Lamarc | Hauptstutbuch Ouvetuere III | Alarm III |
| Osterblume IV | 256540 | 1998 | Lamarc | Ouvertuere III | Alarm |
| Östergårdens Midnight | 233470 | 1994 | Resident | Goldika | Goldfinger |
| Osterglanz xx | 1970 | Neckar xx | Osterblume xx | Polic xx | |
| Österlunds Lurifax | 260531 | 1996 | Malibu II NFH 100 | Nyskovens Luna Twentyfive | Stafford Hat Band NFH 28 |
| Osterman | 969643 | 1990 | Osterglanz | Manie | Furioso III |
| Österrikisk Häst | 232472 | ||||
| Östert Dagobert | 8098 | 1978 | Lockinge Napoleon | Diana v Uchelen | Xander vd Rijksw |
| Östertorps Caruso | 220146 | 1988 | Senateur Veldstaat | Östertorps Darina | Lockinge Napoleon |
| Östertorps Dag Vag | 8204 | 1984 | Lockinge Nopoleon | Diana v Uchelen | Xander vd Rijksw |