| Trakehner Name | Geschlecht | Geburtsjahr | Vater | Muttertier | Farbe | |
|---|---|---|---|---|---|---|
| Ostrorog | Hengst | Unknown | Unknown | |||
| Ostwind | Hengst | 1981 | Donauschimmer | Oralla xx | bay | |
| Ostwind vom Rappenhof | Stute | 1996 | Carino *E* | Onia | dark bay | |
| O'Tatum | Stute | 2007 | Tanzeln *Pb* | O Lena | bay | |
| Othella | Stute | Othello | Unknown | Unknown | ||
| Othello | Wallach | 1985 | Schubert | Oceanette xx | bay | |
| Othello SF | C | 2005 | Windwalzer *Pg* | Onyx Ladys Mystique | bay | |
| Otoe | Hengst | Unknown | Unknown | |||
| Otoes Honeybee | Otoe | Unknown | Unknown | |||
| Ottawa | Wallach | 1988 | Insterfürst | Odessa | bay | |
| Otter | Hengst | 2000 | Carino *E* | Onia | black | |
| Ottilia xx | Stute | Unknown | Unknown | |||
| Otto | Wallach | 2009 | Pavarotti | Olegra | bay | |
| Otto's Baby xx | Stute | 1969 | Royal Note xx | Kaye's Angel xx | bay | |
| Ottste | Stute | Unknown | Unknown | |||
| Ouida B. xx | Stute | 1961 | Jedgar Ruler xx | Gabby Tillie xx | Unknown | |
| Oui Madame xx | Stute | Unknown | Unknown | |||
| Oukalla xx | Stute | 1951 | Patchouly xx | Naivasha xx | chestnut | |
| Our Ambia xx | Stute | Unknown | Unknown | |||
| Our Babu xx | Hengst | Unknown | Unknown | |||
| Our Beau Belle xx | Stute | Unknown | Unknown | |||
| Our Beau Belle xx (Highland Belle) | Stute | 1982 | Coup de Des xx | Tobie Cole xx | dark bay/brown | |
| Our Candidate | Stute | 1979 | Solling | Just Because | liver chestnut | |
| Our Dad xx | Hengst | Unknown | Unknown | |||
| Our Derby Girl xx | Stute | Unknown | Unknown |