| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Wonderful One | d.-bay | f | 1923 | Eternal | June Bug | Thoroughbred | USA | |
| Wonderful Princess | bay | f | 2011 | 643110000212485 | 0804-5 Furrino | 2936-5 Elite Princess | Thoroughbred | Mr. Tkhatl M.I. |
| Wonderley | chestnut | c | 2019 | 643090000351720 | 0748-5 Akbash Kazakh | 3440-5 Valonta | Thoroughbred | Serdyukov V.N. Farm |
| Wonderously | d.-bay | f | 2000 | Awesome Again | Defer West | Thoroughbred | USA | |
| Wondrous Me | bay | f | 1976 | My Dad George | Nilene Wonder | Thoroughbred | USA | |
| Wondrous Pearl | bay | f | 1980 | Prince Ippi | Weltwunder | Thoroughbred | Great Britain | |
| Wont She Tell | bay | f | 1984 | Banner Sport | Wont Tell You | Thoroughbred | USA | |
| Wont Tell You | bay | f | 1962 | Crafty Admiral | Scarlet Ribbon | Thoroughbred | USA | |
| Wood Fire | bay | f | 1947 | Bois Roussel | Blue Smoke | Thoroughbred | Great Britain | |
| Wood Grouse | chestnut | f | 1967 | Celtic Ash | French Bird | Thoroughbred | Great Britain |