| Namn | Licens | Födelseår | Far | Mor | Morfar |
|---|---|---|---|---|---|
| Omen | 23266 | 1987 | Orkan | Maltanka | Perkoz |
| Omer du Forbot | 219451 | 1998 | Omar | Bavarija | Basbak xx |
| Omi | 254097 | 2000 | Marino | Osumi | Justin Damiro |
| Omie | 217342 | 1990 | Trofe | Somte | Swift |
| Omigo | 943734 | 1991 | Flamingo | Oritza | Orust |
| Omilla | 224001 | 1993 | Haj | Ocala | Axel |
| Omina | 15644 | 1981 | Krevad | Odega | Pegasus |
| Ömirella | 996502 | 1992 | Bravad | Mariella | Rustik |
| Omnia | 256563 | 2003 | Don Cardinale | Okarina | Placido |
| Omri af Källstorp | 213219 | 1996 | Pomme Royal | Raffine af Källstorp | Raff |
| OMX-Keys | 991066 | 1993 | Eighty Eight Keys | Try Dancer | Try my best |
| Onassis | 235859 | 1996 | Harcos | Kena | Bredero |
| Onassis | 217850 | 1997 | Nocturne | Olivia | Orust |
| Onassis | 2937 | 1978 | Ingolf | Ona | Ouvertyr |
| Onassis | 14620 | 1972 | |||
| Onca | 223750 | 1996 | Faram | Inca | Alchimist |
| Once Again | 229240 | 1991 | Sir de Vernevil xx | Lavinia W | African Drum xx |
| Once Again | 235414 | 2001 | Irco Mena | Drava | Anart |
| Once Again RP | 256027 | 2005 | Orlando | Cirikit (SWB) | Magini (SWB) |
| Once Moor | 12292 | 1985 | Freimoor | Joy Moor | Curacao |
| Once Moor | 943696 | 1988 | Uttini | Mi Moor | Honey Moor |
| Once Upon A Time | 3583 | 1983 | Tammer Fors | Moon Wind | Javelot |
| Oncidium | 47554 | 1982 | Optimist | Jungfruros | Jovial |
| Onco | 246992 | 2002 | Otello | Phantasie | Passat |
| One and Only | 256444 | 2005 | Quite Easy | Ludwina | Ekstein |
| Onedin | 14733 | 1971 | Gödöllö | Gitte | |
| Onedin | 1978 | Oden | Unesco | ||
| One For Me xx | 228847 | 1998 | Domynsky xx | Spikenard xx | Slip Anchor xx |
| Onega | 9310 | 1979 | Oden | Jona | Jovial |
| O Neil | 224717 | 1994 | Hagens Ochief | Nelly Dun | Tulira Highball |