Benoît Frachon (; 13 May 1893 - 1 August 1975), a French metalworker and trade union leader, was one of the leaders of the French Communist Party (Parti communiste français, PCF) and of the French Resistance during World War II (1939-45). He was Secretary-General of the Confédération générale du travail (CGT) from 1945 to 1967.