Australian Derby
| Nuffield, 1938 winner Harold Badger | |
| Class | Group 1 | 
|---|---|
| Location | Randwick Racecourse Sydney, Australia | 
| Inaugurated | 1861 (as Randwick Derby Stakes) | 
| Race type | Thoroughbred - Flat racing | 
| Website | Australian Jockey Club | 
| Race information | |
| Distance | 2,400 metres (~1+1⁄2 miles) | 
| Surface | Turf | 
| Track | Right-handed | 
| Qualification | Three-year-olds | 
| Weight | Set Weights colts and geldings – 56+1⁄2 kg fillies – 54+1⁄2 kg | 
| Purse | A$2,000,000 (2023) | 
| Bonuses | Exempt from ballot in Queen Elizabeth Stakes | 
The Australian Derby is an Australian Turf Club Group 1 Thoroughbred horse race for three-year-olds at set weights held at Randwick Racecourse, Sydney, Australia in April, during the Autumn ATC Championships Carnival. The race is considered to be the top ranked event for three-year-olds in Australian and New Zealand race classifications.