Ángel Víctor Paz Estenssoro (2 October 1907 – 7 June 2001) was a Bolivian politician who served as the 45th president of Bolivia for three nonconsecutive and four total terms from 1952 to 1956, 1960 to 1964 and 1985 to 1989. He ran for president eight times (1947, 1951, 1960, 1964, 1978, 1979, 1980 and 1985) and was victorious in 1951, 1960, 1964 and 1985. His 1951 victory was annulled by a military junta led by Hugo Ballivián, and his 1964 victory was interrupted by the 1964 Bolivian coup d'état.