| Trakehner Name | Sex | Foaled | Sire | Dam | Color | |
|---|---|---|---|---|---|---|
| Hypothese | Mare | Burnus (AA) | Hyazinthe | |||
| Hypothetical xx | Stallion | Unknown | Unknown | |||
| Hy Society | Mare | 1991 | Dobosz | Helsinki | gray | |
| Hy's You Too xx | Mare | Unknown | Unknown | |||
| Hytaih | Mare | 1989 | Dobosz | Helsinki | bay (gray) | |
| Hy Tec | Stallion | 1990 | Dobosz | Helsinki | gray | |
| Hy Top Brass | Stallion | Unknown | Unknown | |||
| Hy-Wynne Spector ox | Stallion | Unknown | Unknown | |||
| I Am A French Two | Mare | Unknown | Unknown | |||
| Iamarelic xx | Stallion | Unknown | Unknown | |||
| I Am Isis | Mare | 2001 | Onassis *E* | Irisa | bay | |
| I Am Micaela KD | Mare | 2006 | Abdullah *Pg*E* | Inabelle vom Castell | gray | |
| Iam Wynsong | Mare | Wynnejammer | Unknown | Unknown | ||
| Ian's Flemmen | Gelding | 1982 | Orpheus | Indra V | chestnut | |
| Ian (The Riddler) | Gelding | 1986 | Insterruf | Isadora | black | |
| Ianthe xx | Mare | Unknown | Unknown | |||
| Iasmin ox | Mare | Unknown | Unknown | |||
| Ibenhorst | Gelding | 1986 | Inselkönig | Ibiza | bay | |
| Iberia Rose | Mare | 1986 | Incantator | Duchess | Unknown | |
| Iberica | Mare | 1984 | Polarmond | Ibiza | gray | |
| Ibidem xx | Mare | Unknown | Unknown | |||
| Ibikus | Stallion | 1967 | Hertilas | E.St. Isolda | bay | |
| Ibisco xx | Stallion | Unknown | Unknown | |||
| Ibiza | Mare | Marquis | Ira II | chestnut | ||
| Ibizar | Mare | 1984 | E.H. Consul | Ibiza | bay |