| Competition: | sanfl |
| Year: | 1970 |
| Teams: | 10 |
| Count: | 10 |
| Mpcount: | 34 |
| Matches: | 103 |
| Attendance: | 970767 |
| Highattend: | 48,757 (Grand Final, vs.) |
| Top Goal Scorer: | Fred Phillis (107 Goals) |
| Magarey Medal: | Barrie Robran (24 votes) |
| Prevseason: | 1969 |
| Nextseason: | 1971 |
The 1970 South Australian National Football League season was the 91st season of the top-level Australian rules football competition in South Australia.
See main article: 1970 SANFL Grand Final.