| Class | Group 1 |
|---|---|
| Location | Caulfield Racecourse, Melbourne, Australia |
| Inaugurated | 1951 |
| Race type | Thoroughbred |
| Sponsor | Sportsbet (2024-2026) |
| Race information | |
| Distance | 1,400 metres |
| Surface | Turf |
| Qualification | Three year old and older |
| Weight | Open handicap |
| Purse | $1,000,000 (2026) |
The Sir Rupert Clarke Stakes, registered as the Invitation Stakes, is a Melbourne Racing Club Group 1 Thoroughbred open handicap horse race, run over a distance of 1400 metres at Caulfield Racecourse, Melbourne, Australia in late September.
Prior to 1994, the race was held on Royal Melbourne Show Day, which was observed on the Thursday in the last full week of September as a public holiday. The race was renamed in 2005 after former chairman of the Victorian Amateur Turf Club, Sir Rupert Clarke, who died in 2005.
The following are past winners of the race.