| Competition: | ntfl |
| Year: | 1977–78 |
| Teams: | 6 |
| Premiers: | St Marys |
| Count: | 9 |
| Minor Premiers: | St Marys |
| Mpcount: | 10 |
| Wooden Spooners: | Waratah |
| Wscount: | 14 |
| Prevseason: | 1976 |
| Nextseason: | 1978 |
The 1977–78 NTFL season was the 57th season of the Northern Territory Football League (NTFL).[1]
St Marys have won their ninth premiership title while defeating the Nth. Darwin (Palmerston) Magpies in the grand final by 23 points.