The 2012 Boys' Youth South American Volleyball Championship was the 18th edition of the tournament, organised by South America's governing volleyball body, the Confederación Sudamericana de Voleibol (CSV).

It was held in Santiago, Chile.

The top three teams qualified for the 2013 Youth World Championship.

[1] For the first time, Bolivia send a youth team to a South American Championship, making it the first time in South America 9 teams participated.

The following national teams participated, teams were seeded according to how they finished in the previous edition of the tournament; teams that did not participate in the previous championship were seeded according to ranking:[2] Chile (Host & 5th) Peru (6th) Uruguay Argentina (1st) Colombia (4th) Paraguay Brazil (2nd) Venezuela (3rd) Bolivia The top team from each pool plus the best second place team will qualify to the semifinals.