| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Wedgewood Blue | bay | f | 1977 | Thoroughbred | USA | |||
| Wedlock | chestnut | f | 1884 | Wenlock | Cybele | Thoroughbred | Great Britain | |
| Wednesday's Child | d.-bay | f | 1995 | Storm Cat | Bashful Charmer | Thoroughbred | USA | |
| Wee Bit Saucy | d.-bay | f | 1958 | Swaps | Thoroughbred | USA | ||
| Wee Landing | bay | f | 1968 | First Landing | Wee Nip | Thoroughbred | USA | |
| Wee Lassie | bay | f | 1869 | The Scottish Chief | Minna | Thoroughbred | Great Britain | |
| Wee Nip | bay | f | 1945 | War Admiral | Bourbonette | Thoroughbred | USA | |
| Week-End | grey | f | 1952 | Endeavour 2 | Saturday Off | Thoroughbred | USA | |
| Weekend | chestnut | c | 2004 | 643094100000443 | 0441-3 Endshpil | 1230-3 Usadba | Thoroughbred | Mr Tharkakhov N.H. |
| Weekend Gold | d.-bay | f | 1998 | Seeking the Gold | Weekend In Seattle | Thoroughbred | USA |