| Competition: | ntfl |
| Year: | 1986–87 |
| Teams: | 6 |
| Premiers: | St Marys |
| Count: | 14 |
| Minor Premiers: | St Marys |
| Mpcount: | 15 |
| Wooden Spooners: | Palmerston |
| Wscount: | 5 |
| Prevseason: | 1985 |
| Nextseason: | 1987 |
The 1986–87 NTFL season was the 66th season of the Northern Territory Football League (NTFL).[1]
St Marys have won there 14th premiership title while defeating the Darwin Buffaloes in the grand final by 121 points.