| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Wilis | bay | f | 1892 | Stronzian | Thoroughbred | Austria | ||
| Wilkes | chestnut | c | 1952 | Court Martial | Sans Tares | Thoroughbred | France | |
| Wilko | chestnut | c | 2002 | Awesome Again | Native Roots | Thoroughbred | USA | |
| Will Dancer | c | 1982 | Green Dancer | Thoroughbred | ||||
| Will Fight | chestnut | c | 2017 | 982020021902537 | Will Take Charge | Blade's Edge | Thoroughbred | Machmer Hall |
| Will O The Wisp | chestnut | f | 1929 | Hurry On | William's Pride | Thoroughbred | Great Britain | |
| Will O The Wisp | bay | f | 1960 | Hornbeam | Wye Wander | Thoroughbred | Great Britain | |
| Will Patricia | bay | f | 1984 | Bellypha | Native Loraine | Thoroughbred | USA | |
| Will Somers | d.-bay | c | 1955 | Tudor Minstrel | Queen's Jest | Thoroughbred | Great Britain | |
| Will Take Charge | chestnut | c | 2010 | Unbridled's Song | Take Charge Lady | Thoroughbred | USA |