| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Willowfield | bay | f | 1965 | Stratus | Willow Lake | Thoroughbred | Canada | |
| Willrock | bay | c | 2024 | 900255001835599 | 1581-7 Grin Rok | 6475-8 Riviera | Thoroughbred | Mr Ulrikh A. V. |
| Willstar | chestnut | f | 1993 | Nureyev | Nijinsky Star | Thoroughbred | USA | |
| Willy Willy | bay | f | 1971 | Whistling Wind | Milly | Thoroughbred | Ireland | |
| Wilna | bay | f | 1908 | Thoroughbred | France | |||
| Wilner Madel | f | Thoroughbred | ||||||
| Wilson Arabian mare | grey | f | 1755 | Wilson's Arabian | Spot mare | Thoroughbred | Great Britain | |
| Wilson's Arabian | chestnut | c | Thoroughbred | |||||
| Wilwyn | bay | c | 1948 | Pink Flower | Saracen | Thoroughbred | Great Britain | |
| 1011-5 Wilyams | bay | c | 2004 | Wizard King | Michelee | Thoroughbred | Great Britain |