| Rex McDonald | |
|---|---|
| Breed | American Saddlebred |
| Discipline | Five-gaited |
| Sire | Rex Denmark |
| Dam | Lucy Mack |
| Maternal grandsire | Black Squirrel |
| Foaled | May 30, 1890 |
| Died | November 13, 1913 (aged 23) |
| Breeder | Joe McDonald |
| Trainer | Billy Davis Tom Bass |
Rex McDonald was an American Saddlebred stallion. He was only beaten three times in his show career and had an influential career as a sire.