| Competition: | sanfl |
| Year: | 1948 |
| Teams: | 8 |
| Count: | 21 |
| Mpcount: | 13 |
| Matches: | 72 |
| Attendance: | 598902 |
| Highattend: | 48,755 (Grand Final, vs.) |
| Top Goal Scorer: | Colin Churchett (88 Goals) |
| Magarey Medal: | Ron Phillips |
| Prevseason: | 1947 |
| Nextseason: | 1949 |
The 1948 South Australian National Football League season was the 69th season of the top-level Australian rules football competition in South Australia.
See main article: 1948 SANFL Grand Final.