The 1983 NSL Cup was the seventh edition of the NSL Cup, which was the main national association football knockout cup competition in Australia. The competition was known as the Philips Cup under a sponsorship arrangement with Dutch company Philips.
APIA Leichhardt were the defending champions, having defeated Heidelberg United to win their first title in the previous year's final, but they were eliminated in the final by Sydney Olympic.
Sydney Olympic defeated Heidelberg United 2–0 on aggregate in the final to win their first NSL Cup title.
Teams
The NSL Cup was a knockout competition with 16 teams taking part all trying to reach the Final in November 1983. The competition consisted of the 16 teams from the National Soccer League.