Michel Varga (born Balazs Nagy; c. 1927 – August 23, 2015) was a Hungarian and French Trotskyist activist.
Varga was active in the Union of Working Youth, student organisation of the Hungarian Working People's Party, within which he was regarded as an intellectual. He was part of a group which in 1954 founded the Petofi discussion group, in opposition to Mátyás Rákosi. When it was revived in 1956, he became Deputy Secretary of its Provisional Bureau. The group, while influential, attempted to quell the Hungarian Revolution, fearing a violent backlash.
Following the defeat of the revolution, Varga escaped to Austria, then settled in Paris, where, following discussions with Pierre Broué, he became a Trotskyist and founded the League of Revolutionary Socialists of Hungary with other exiles. He joined the Internationalist Communist Organisation (OCI) in 1962, and in 1963 his league affiliated to the International Committee of the Fourth International (ICFI).
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