Mouvement Jeunes Communistes de France

The Mouvement Jeunes communistes de France (MJCF), commonly called the "JC" (for Jeunesse Communiste, historically its first name), is the first political youth organisation of France, close to the French Communist Party (PCF).

The MJCF is organised independently of the PCF, deciding its laws, structure and leaders as well as its stances, while continuously engaging with the party about the actions and stances to take in keeping with a transformational vision of society.

The MJCF was founded in 1920 as the "Fédération nationale des jeunesses socialistes-communistes de France", a split of the Youg socialists, under the auspices of the Tours Congress. Its secretary general is Léon Deffontaines, elected at the time of the national council of 27 January 2019. According to its own statistics, the movement counts 15,000 members in France.

The MJCF publishes a quarterly journal, Avant-garde. It is part of the World Federation of Democratic Youth and was part of the European Network of Democratic Young Left (ENDYL) until its dissolution.

The MJCF contains the Union des étudiants communistes student grouping, which directs its own institutions to meet the specific demands of militancy in higher education.