1984 National Soccer League
The 1984 National Soccer League season was the eighth season of the National Soccer League in Australia. This season saw a restructure of the league, introducing a split into two geographical divisions, and an expansion from 16 to 24 teams. A Northern Conference comprised 12 clubs from New South Wales and Australian Capital Territory, and a Southern Conference consisted of 12 Victorian, South Australian, and Queensland clubs.
This season also saw the introduction of the two well-supported Croatian clubs, Melbourne Croatia and Sydney Croatia, both of which had had recent success in the state-leagues.
For the first time in the competition, a finals system was introduced, whereby the five highest finishing teams in each conference had a playoff to determine a conference winner. The two conference winners then played each other in a two-legged Grand Final to be declared champions. The Grand Final was won by South Melbourne over Sydney Olympic.
Teams
Twenty-four teams competed in the league – the sixteen teams from the previous season and eight teams accepted from their respective state leagues.Managerial changes
The Australian Soccer Annual 1984 reported 11 managerial changes.| Team | Outgoing manager | Date of vacancy | Position in the table | Incoming manager | Date of appointment |
| Adelaide City |  League tablesSouthern Conference ResultsFive matches occurred where the fixture was played a third time in the 1984 season.
Finals seriesNorthern Conference'''Southern Conference''' Grand Final----
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