The 2010 Men's Junior South American Volleyball Championship was the 20th edition of the tournament, organised by South America's governing volleyball body, the Confederación Sudamericana de Voleibol (CSV).

[1] The following national teams participated in the tournament; teams were seeded according to how they finished in the previous edition of the tournament: Argentina (1st) Venezuela (3rd) Colombia (5th) Peru Brazil (2nd) Chile (4th) Uruguay (6th) Paraguay (8th)