| Grade III race | |
| Location | Churchill Downs Louisville, Kentucky, United States |
|---|---|
| Inaugurated | 1991 (as Ack Ack Handicap) |
| Race type | Thoroughbred – Flat racing |
| Website | Churchill Downs |
| Race information | |
| Distance | 1 mile (8 furlongs) |
| Surface | Dirt |
| Track | left-handed |
| Qualification | Three-years-old and older |
| Weight | Base weights with allowances: 4-year-olds and up: 125 lbs. 3-year-olds: 122 lbs. |
| Purse | US$300,000 (2021) |
| Bonuses | Winner receives automatic entrance to the Breeders' Cup Dirt Mile |
The Ack Ack Stakes is a Grade III American Thoroughbred horse race for three years old and older, over a distance of one mile on the dirt held annually in September at Churchill Downs, in Louisville, Kentucky. The event currently carries a purse of $300,000.