| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 4571-6 Zeolite | bay | f | 2008 | 985101045131996 | Acclamation | Zolletta | Thoroughbred | Ireland |
| 5373-7 Zepherine | bay | f | 2009 | 710098100112217 | Western Winter | Zebrina | Thoroughbred | Lammerskraal Stud |
| Zephyretta | bay | f | 1922 | Lemberg | Rose Pompom | Thoroughbred | USA | |
| Zephyrine | grey | f | 1994 | Highest Honor | Petal Girl | Thoroughbred | Ireland | |
| Zeptimiya | br. | f | 1838 | Septimus | Moraida | Thoroughbred | ||
| 7157 Zera | chestnut | f | 1977 | 3080 Zenit | 3863 Zborka | Thoroughbred | Voskhod Stud | |
| 2119-4 Zera | l.bay | f | 2004 | 643094100003044 | 0647-4 Edigej | 0358-2 Zavada | Thoroughbred | Labinsk Stud |
| Zeravshan | bay | c | 1965 | 3000 Steinadler | 2933 Zrelost | Thoroughbred | Labinsk Stud | |
| Zerbinetta | bay | f | 1970 | Henry the Sevent | Yucatan | Thoroughbred | Great Britain | |
| Zerdagi | chestnut | c | 1990 | 3224-1 Gabrov | 5577 Zamiya | Thoroughbred | Kullar Stud |