| Grade II race | |
| Location | Del Mar Racetrack Del Mar, California, United States |
|---|---|
| Inaugurated | Initial – 1980 Renewed – 1986 |
| Race type | Thoroughbred – Flat racing |
| Website | Del Mar |
| Race information | |
| Distance | 7 furlongs |
| Surface | Dirt |
| Track | left-handed |
| Qualification | Three-years-old & older |
| Weight | Base weights with allowances: 4-year-olds and up: 125 lbs. 3-year-olds: 122 lbs. |
| Purse | $250,000 (2022) |
| Bonuses | Breeders' Cup "Win And You're In" to the Breeders' Cup Dirt Mile |
The Pat O'Brien Stakes is a Grade II American Thoroughbred horse race for three-year-olds and older over a distance of seven furlongs on the dirt track scheduled annually in August at Del Mar Racetrack in Del Mar, California. The event currently carries a purse of $250,000.