The 25th Legislative Assembly of Quebec was the Quebec, Canada, provincial political legislature that existed from June 20, 1956, and June 22, 1960. The Union Nationale was the governing party for the fourth consecutive mandate. It was also Maurice Duplessis last term as Premier of Quebec. He died in office in 1959 and was succeeded in less than a year by Paul Sauvé and former cabinet Minister Antonio Barrette after Sauvé died less than four months after being sworn as Premier.