The 1981 season was the fifth in the National Soccer League for Heidelberg United.
Heidelberg United finished 8th in their National Soccer League season and were eliminated in the quarter-finals of the NSL Cup.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.
The list is sorted by squad number when total cards are equal.
The list is sorted by squad number when total clean sheets are equal.