The 2005 Women's South American Volleyball Championship was the 26th edition of the Women's South American Volleyball Championship, organised by South America's governing volleyball body, the Confederación Sudamericana de Voleibol (CSV). It was held in La Paz, Bolivia from September 17 to 23, 2005.
The competition system for the 2005 Women's South American Championship was a single Round-Robin system. Each team plays once against each of the 6 remaining teams with one team having a break each date. Points are accumulated during the whole tournament, and the final ranking is determined by the total points gained.
The matches were divided into 2 rounds.
Round 1: Top 3 teams (Brazil, Peru and Argentina according to FIVB Ranking) will play against the 4 remaining teams.
Round 2: Top 3 teams will play against each other, the 4 remaining teams will play against each other too.