| 1984 NBL season | |
|---|---|
| League | National Basketball League |
| Sport | Basketball |
| Duration | 3 February – 17 June 1984 (Regular season) 22 June – 1 July 1984 (Finals) |
| Number of games | 23 (Western Division) 24 (Eastern Division) |
| Number of teams | 17 |
| TV partner(s) | ABC |
| Regular season | |
| Season champions | Brisbane Bullets (Eastern) Geelong Cats (Western) |
| Season MVP | Leroy Loggins (Brisbane) |
| Top scorer | Al Green (West Adelaide) |
| Finals | |
| Champions | Canberra Cannons (2nd title) |
| Runners-up | Brisbane Bullets |
The 1984 NBL season was the sixth season of the National Basketball League (NBL). With the Melbourne Tigers joining the competition, the league's number of teams increased to 17, with nine teams in the Eastern Division and eight teams in the Western Division. The regular season began on 3 February and ended on 17 June. The finals began on 22 June with the divisional finals before concluding on 1 July with the NBL Grand Final.