2003 FIA GT Brno 500km

The 2003 FIA GT Brno 500 km was the fourth round the 2003 FIA GT Championship.

It took place at the Brno Circuit, Czech Republic, on 25 May 2003.

Cars failing to complete 70% of winner's distance marked as Not Classified (NC).

† – #8 Graham Nash Motorsport was disqualified for failing post-race technical inspection.

The car was found to have a fuel tank larger than regulations allowed.