| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| You'resothrilling | br. | f | 2005 | Storm Cat | Mariah's Storm | Thoroughbred | USA | |
| Youbetterbelieveit | chestnut | f | 1996 | Kris S | Existentialist | Thoroughbred | USA | |
| Youlai | bay | c | 2023 | 900193000158460 | 1918-8 High Lemon | 4566-6 Yunaya | Thoroughbred | Mr Nasibullin I.M. |
| Youmzain | bay | c | 2003 | Sinndar | Sadima | Thoroughbred | Ireland | |
| Young Agnes | br. | f | 1863 | Voltigeur | Agnes Wickfield | Thoroughbred | Great Britain | |
| Young Alice | bay | f | 1865 | Young Melbourne | Sweet Hawthorn | Thoroughbred | Great Britain | |
| Young and Wild | d.-bay | f | 1993 | Wild Again | Twang | Thoroughbred | USA | |
| Young Bald Peg | f | 1673 | Leedes Arabian | Old Morocco Mare | Thoroughbred | |||
| Young Belgrade | c | 1729 | Belgrade Turk | Bay Bolton Mare | Thoroughbred | Great Britain | ||
| Young Blacklock | bay | c | 1825 | Blacklock | Thoroughbred | Great Britain |