| Competition: | sanfl |
| Year: | 2011 |
| Teams: | 9 |
| Count: | 3 |
| Mpcount: | 11 |
| Matches: | 96 |
| Attendance: | 343596 |
| Highattend: | 25,234 (Grand Final, vs.) |
| Top Goal Scorer: | Michael Wundke (67 Goals) |
| Magarey Medal: | James Allen (25 votes) |
| Prevseason: | 2010 |
| Nextseason: | 2012 |
The 2011 South Australian National Football League season was the 132nd season of the top-level Australian rules football competition in South Australia.
The season opened on 2 April with the opening fixture between and, and concluded on 9 October with the Grand Final, in which the Minor Premiers went on to lose to who recorded its 3rd premiership, winning by 3 points.
,,, also made the top (final) five teams and participated in the finals series.,,, all missed the top five, with the last of those finishing last to record its 19th wooden spoon.