Legislative elections were held in France on 16 March 1986 to elect the eighth National Assembly of the Fifth Republic. Contrary to other legislative elections of the Fifth Republic, the electoral system used was that of party-list proportional representation.
Since the 1981 election of François Mitterrand, the Presidential Majority was divided. In March 1983 Prime Minister Pierre Mauroy renounced the left's radical Common Programme which had been agreed in the 1970s. Wages and prices were frozen. This change of economic policy was justified by the will to stay in the European Monetary System. A year later, the Communist ministers refused to remain in Laurent Fabius' cabinet.