| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| World's Faire | d.-bay | f | 1892 | Thoroughbred | Great Britain | |||
| World's View | bay | f | 1990 | Top Ville | Favorite Prospect | Thoroughbred | Great Britain | |
| Worldly Bold | bay | f | 1993 | World Appeal | Jolie Bold | Thoroughbred | USA | |
| Worldly Miss | bay | f | 1963 | Worden 2 | Claudette | Thoroughbred | Great Britain | |
| Worldly Pleasure | bay | f | 2000 | Devil His Due | Fast Pleasure | Thoroughbred | USA | |
| Worldly Wise | bay | f | 1948 | Bimelech | Thoroughbred | USA | ||
| Worldwatch | bay | c | 1978 | Nijinsky II | Georgica | Thoroughbred | USA | |
| Worldy Reason | bay | f | 1976 | Limit to Reason | Carolyn's World | Thoroughbred | USA | |
| Wormeleys King Herod | bay | c | 1766 | Fearnought | Kitty Fisher | Thoroughbred | USA | |
| Worship the Moon | bay | f | 2007 | Malibu Moon | Evangelizer | Thoroughbred | USA |