The 1999–2000 season was the 31st season of national competitive association football in Australia and 117th overall.

In Australia's fourth OFC Nations Cup run, they were declared Champions after they won 2–0 against New Zealand and had conceded no goals through their whole run in the 2000 OFC Nations Cup.

[1] The 1999 Women's National Soccer League Grand Final was played at Marconi Stadium on 20 November.

The match was contested between the NSW Sapphires and the SASI Pirates.

NSW won the Grand Final in a 1–0 victory by an own goal by Dianne Alagich in the 18th minute.