The 2004 Australian Formula 3 Championship was a CAMS sanctioned national motor racing championship open to Australian Formula 3 cars.[1] The championship, which was the fourth Australian Formula 3 Championship,[2] was organised and administered by Formula 3 Australia Inc.[1]
Western Australian racer Karl Reindler took a narrow three point championship victory driving a Dallara F301 for South Australian-based motor racing team, Team BRM. Reindler took the win over Queensland driver Chris Gilmour.