| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Watteau | c | 1954 | Nimbus | Thoroughbred | ||||
| Wattle Bough | br. | f | 1912 | Garganey | Thoroughbred | Ireland | ||
| Wauthi | bay | c | 1977 | Authi | Wait and Take | Thoroughbred | Germany | |
| 6945-8 Wave Chrom | bay | f | 2018 | 981020027823566 | California Chrome | Wave the Flag | Thoroughbred | Jack Swain |
| Wave o'Brien | bay | f | 1967 | Irish Lancer | Thoroughbred | USA | ||
| Wave the Flag | d.-bay | f | 2011 | Empire Maker | Dancing General | Thoroughbred | USA | |
| Wavelet | br. | f | 1880 | Paul Jones | Wanda | Thoroughbred | Great Britain | |
| Wavering Girl | bay | f | 1987 | Wavering Monarch | Battle Creek Girl | Thoroughbred | USA | |
| Wavering Lady | bay | f | 1985 | Wavering Monarch | Pia's Lady | Thoroughbred | USA | |
| Wavering Monarch | bay | c | 1979 | Majestic Light | Uncommitted | Thoroughbred | USA |