2003 Supersport World Championship
| 2003 Supersport World Championship | |||
| Previous: | 2002 | Next: | 2004 |
| Support series: Superbike World Championship Superstock European Championship | |||
The 2003 Supersport World Championship was the seventh season of the Supersport World Championship. The season was held over 11 races following the Superbike World Championship calendar except a race at Laguna Seca. Beginning on 2 March at Circuit Ricardo Tormo in Spain, and finished on 19 October at Circuit de Nevers Magny-Cours in France. Chris Vermeulen won the title after beating closest rival Stéphane Chambon.