1908–09 Sheffield Shield season
| Cricket format | First-class | 
|---|---|
| Tournament format(s) | Double round-robin | 
| Champions | New South Wales (10th title) | 
| Participants | 3 | 
| Matches | 6 | 
| Most runs | Vernon Ransford (Victoria) – 720 runs | 
| Most wickets | Jack O'Connor (South Australia) – 26 wickets | 
The 1908–09 Sheffield Shield season was the 17th season of the Sheffield Shield, the domestic first-class cricket competition of Australia. New South Wales won the championship.