The 2021 Men's South American Volleyball Championship was the 34th edition of the Men's South American Volleyball Championship, organised by South America's governing volleyball body, the Confederación Sudamericana de Voleibol (CSV).

The tournament was held in Brasília, Brazil from 1 to 5 September 2021.

[1] The champions and runners up, qualified for the 2022 FIVB Volleyball Men's World Championship.

[2] The tournament was held with 5 teams, after the withdrawal of Venezuela due to COVID-19 pandemic issues.

* The matches were held without public due to COVID-19 pandemic restrictions.