A constitutional referendum was held in France on 28 September 1958. Voters were asked whether they approved of the adoption of a constitution for the French Fifth Republic written by Charles de Gaulle. It was overwhelmingly approved, with 82.6% in favour. Voter turnout was 84.9% in metropolitan France and 79.8% overall.
The total includes Overseas departments, Algeria, Sahara, Overseas territories (except Guinea, French Togoland, French Cameroon, French New Hebrides and Wallis and Futuna) and French citizens living abroad.