Coordinadora Revolucionaria de Masas (Revolutionary Mass Coordination) was a coordination of revolutionary mass organizations in El Salvador formed on January 11, 1980.
The major action in its history was a January 22, 1980, demonstration, in commemoration of the 1932 Salvadoran peasant uprising.
The security forces attacked the march with snipers located in the National Palace and other buildings in downtown San Salvador against the contingents of Frente de Acción Popular Unificado (United Popular Action Front) (FAPU) and Unión Democrática Nacionalista.
The last big demonstration of the CRM occurred on March 24, 1980, during the funeral of Archbishop Óscar Romero, assassinated the week before.
The repression of the march was brutal and the marchers began to leave the streets and the CRM devolved into a coordinating body of unions, student, farmer and worker groups.