| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 3991-6 Abbatisa | d.-bay | f | 2010 | 643094100088382 | 0555-4 Sensational Choice | 0001-2 Abba | Thoroughbred | Mr. Bondarenko S.V. |
| Abbatissa | bay | f | 1992 | 3282-1 Bant | 0003-2 Abona | Thoroughbred | Beslansk Stud | |
| Abbay | bay | c | 2012 | 643094100344192 | 0763-5 British | 2816-5 Aspen Prima | Thoroughbred | Agro-Galan Farm |
| Abbazia | bay | f | 1919 | Thoroughbred | ||||
| Abbazia | bay | f | 1919 | Dark Ronald | Adria | Thoroughbred | Germany | |
| Abberton | bay | f | 1986 | Ile de Bourbon | Favoridge | Thoroughbred | Ireland | |
| Abbess | chestnut | f | 1896 | Kordian | Satira | Thoroughbred | ||
| Abbey Street | chestnut | f | 2010 | Street Boss | Moyne Abbey | Thoroughbred | USA | |
| Abbot's Anne | bay | f | 1899 | Right-Away | Sister Lumley | Thoroughbred | Great Britain | |
| Abbot's Trace | chestnut | c | 1917 | Tracery | Abbot's Anne | Thoroughbred | Ireland |