| Horsename: | Royal Oath |
| Sire: | Kingmambo |
| Grandsire: | Mr. Prospector |
| Dam: | Sherkiya |
| Damsire: | Goldneyev |
| Sex: | Stallion |
| Foaled: | 27 April 2003 |
| Country: | United States |
| Colour: | Bay |
| Breeder: | Farish & Farish LLC |
| Owner: | William S. Farish III William S. Farish IV |
| Trainer: | John Gosden Mark E. Casse |
| Record: | 16: 4–3–1 |
| Race: | Royal Hunt Cup (2007) King Edward Stakes (2008) |
Royal Oath (foaled 27 April 2003) is an American-bred Thoroughbred racehorse. He won the Royal Hunt Cup at Royal Ascot in 2007.