| National Soccer League Cup | |
|---|---|
| Tournament details | |
| Country | Australia |
| Dates | 25 April – 15 October 1980 |
| Teams | 32 |
| Final positions | |
| Champions | Marconi Fairfield (1st title) |
| Runner-up | Heidelberg United |
| Tournament statistics | |
| Matches played | 32 |
| Goals scored | 110 (3.44 per match) |
| Attendance | 75,824 (2,370 per match) |
The 1980 NSL Cup was the fourth edition of the NSL Cup, which was the main national association football knockout cup competition in Australia.
Adelaide City were the defending champions, having defeated St George-Budapest to win their first title in the previous year's final, but they were eliminated in the semi-finals by finalist Heidelberg United.[1]
Marconi Fairfield defeated Heidelberg United 3–0 via a replay after a 0–0 draw in the final to win their first NSL Cup title.