| NSL 1989–90 | |
|---|---|
| League | National Soccer League |
| Sport | Association football |
| Duration | 1989–90 |
| Number of teams | 14 |
| NSL season | |
| Champions | Sydney Olympic |
| Top scorer | David Seal (15) |
The 1989–90 National Soccer League season, was the 14th season of the National Soccer League in Australia.
Source: rsssf.com
Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.