| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Where Music Is | bay | f | 1982 | In Reality | Rigid Princess | Thoroughbred | USA | |
| Where To | d.-bay | f | 1968 | Hidden Treasure | Doily | Thoroughbred | Canada | |
| Where To Dance | bay | c | 1985 | Northern Dancer | Where You Lead | Thoroughbred | USA | |
| Where Woody Bea | chestnut | f | 2002 | Woodman | Maratha | Thoroughbred | USA | |
| Where You Lead | chestnut | f | 1970 | Raise a Native | Noblesse | Thoroughbred | USA | |
| Where's Bailey | bay | f | 2002 | Aljabr | Vertigineux | Thoroughbred | USA | |
| Whiba | bay | f | 1906 | St. Serf | Waima | Thoroughbred | France | |
| Whichone | br. | c | 1927 | Chicle | Thoroughbred | USA | ||
| Whiff | bay | c | 1815 | Thoroughbred | Great Britain | |||
| Whiffling | bay | f | 1985 | Wavering Monarch | Queen's Gambit | Thoroughbred | USA |