| Competition: | safl |
| Year: | 1920 |
| Teams: | 7 |
| Count: | 4 |
| Mpcount: | 3 |
| Matches: | 45 |
| Highattend: | 42,500 (12 July, vs.) |
| Top Goal Scorer: | Frank Golding (30 goals) |
| Magarey Medal: | Vic Richardson Dan Moriarty |
| Prevseason: | 1919 |
| Nextseason: | 1921 |
The 1920 South Australian Football League season was the 41st season of the top-level Australian rules football competition in South Australia.
See main article: 1920 SAFL Grand Final.