Roberto Eduardo Viola (October 13 1924 - September 30 1994) was acting president of Argentina in 1981, taking office on March 29 until December 11. In 1983 he was arrested and sentenced to 17 years of jail for human rights violations committed during the ruling of the military junta, the so-called Dirty War.

Preceded by:
Jorge Rafael Videla
Presidents of Argentina Succeeded by:
Leopoldo Galtieri

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