The 2002–03 NBL season was the 25th season of competition since its establishment in 1979.

A total of 11 teams contested the league.

The 2002–03 regular season took place over 22 rounds between 2 October 2002 and 1 March 2003.

Updated to match(es) played on 1 March 2003.

Source: NBL.com.au 1Sydney Kings won Head-to-Head (2-1).