The Constantine Plan (French: Plan de Constantine) was an economic development program aiming to lessen the socio-economic gap between citizens of French Algeria and Metropolitan France. Financed by French capital, it was introduced in 1958 by President Charles de Gaulle during the height of the Algerian War in an attempt to quell uprisings of Algerian independence. The plan was structured based on the former Maspétiol Report, and the report entitled “Les perspectives décennales du développement économique de l'Algérie”, and officially commenced on October 3, 1958 after de Gaulle gave his speech in the Algerian city of Constantine.
The long-term impact and progress made by the Constantine Plan ran through many spheres of Algerian society including education, public service and administration, housing, and land distribution in French Algeria. The plan was intended to serve two purposes: to weaken support for the Front de libération nationale (FLN) in Algeria and to prevent the spread of communism, keeping Algeria in the Eurafrica sphere. In the long run, the plan proved to be unsuccessful in most of its goals as its promises were either not kept or were poorly implemented. The Constantine Plan failed to quell the Algerian War (1954–1962), which led to Algeria's independence in July 1962.