2003 Men's South American Volleyball Championship

The 2003 Men's South American Volleyball Championship was the 25th edition of the event, organised by South America's governing volleyball body, the Confederación Sudamericana de Voleibol (CSV). It was hosted in Rio de Janeiro, Brazil from September 2 to September 6, 2003.

This event featured five teams competing in a round-robin format, where each team played against every other team in the tournament. At the end of the round-robin format, the team with the highest number of points won the championship. The winners (Brazil) and runners-up (Venezuela) qualified for the 2003 FIVB Volleyball Men's World Cup in Japan.