1980 NSL Cup final

The 1980 NSL Cup final was the final match of the 1980 NSL Cup, the fourth season of the National Soccer League Cup. It was first played at Olympic Park Stadium in Melbourne on 4 October 1980 between Heidelberg United and Marconi Fairfield, before it was replayed in Marconi Oval in Sydney on 15 October 1980.

Marconi Fairfield won the replay match 3–0 after a 0–0 draw in the initial match for their first NSL Cup title. As winners of the NSL Cup, Marconi Fairfield qualified for the 1981 Charity Shield, which they won against National Soccer League champions Sydney City.