| 1978 SANFL season | |
|---|---|
| Teams | 10 |
| Premiers | Norwood 24th premiership |
| Minor premiers | Sturt 8th minor premiership |
| Magarey Medallist | Kym Hodgeman Glenelg (50 votes) |
| Ken Farmer Medallist | Tim Evans Port Adelaide (90 Goals) |
| Attendance | |
| Matches played | 116 |
| Total attendance | 1,048,871 (9,042 per match) |
| Highest | 50,867 (Grand Final, Norwood vs. Sturt) |
The 1978 South Australian National Football League season was the 99th season of the top-level Australian rules football competition in South Australia.