| Year: | 1940 |
| Competition: | SANFL |
| Match Type: | Grand Final |
| Home: | |
| Home Abbr: | STU |
| Away: | |
| Away Abbr: | STH |
| Home Qtr1: | 4.5 (29) |
| Home Qtr2: | 5.6 (36) |
| Home Qtr3: | 11.10 (76) |
| Home Qtr4: | 14.16 (100) |
| Away Qtr1: | 0.0 (0) |
| Away Qtr2: | 4.6 (30) |
| Away Qtr3: | 6.9 (45) |
| Away Qtr4: | 11.13 (79) |
| Home Score: | 14.16 (100) |
| Away Score: | 11.13 (79) |
| Date: | Saturday, 28 September |
| Stadium: | Adelaide Oval |
| Attendance: | 28,500 |
| Last: | 1939 |
| Next: | 1941 |
The 1940 SANFL Grand Final was an Australian rules football competition. beat 100 to 79.[1]