| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Wallenstein | bay | c | 1917 | Dark Ronald | Wilner Madel | Thoroughbred | Germany | |
| Wallet Lifter | bay | c | 1959 | Khaled | Lismore Liz | Thoroughbred | USA | |
| Wallflower | f | 1957 | Donore | Flapper | Thoroughbred | |||
| Wallonin | d.-bay | f | 1951 | Orator | Waffenart | Thoroughbred | Germany | |
| Walmer | bay | c | 1853 | Thoroughbred | Great Britain | |||
| Walnut | bay | c | 1786 | Highflyer | Maiden | Thoroughbred | Great Britain | |
| Walnut mare | f | 1796 | Walnut | Ruler mare | Thoroughbred | Great Britain | ||
| 0039-2 Walpole | bay | c | 1995 | High Estate | Walesiana | Thoroughbred | Great Britain | |
| 960 Waltala | bay | f | 1936 | Wallenstein | Thoroughbred | Germany | ||
| 1216 Walter Gay | chestnut | c | 1926 | Captain Cuttle | William's Pride | Thoroughbred | Great Britain |