| Competition: | ntfl |
| Year: | 1970–71 |
| Teams: | 5 |
| Premiers: | Darwin |
| Count: | 18 |
| Minor Premiers: | Darwin |
| Wooden Spooners: | Wanderers |
| Wscount: | 18 |
| Prevseason: | 1969 |
| Nextseason: | 1971 |
The 1970–71 NTFL season was the 50th season of the Northern Territory Football League (NTFL).[1]
Darwin have won there 18th premiership title while defeating St Marys in the grand final by 48 points.