The Farabundo Martí National Liberation Front (Spanish: Frente Farabundo Martí para la Liberación Nacional, FMLN) is one of the two major political parties in El Salvador.

The FMLN was formed as an umbrella group on October 10, 1980, from five leftist guerrilla organizations:

the Fuerzas Populares de Liberación Farabundo Martí (FPL),

the People's Revolutionary Army (ERP),

the Resistencia Nacional (RN),

the Partido Comunista Salvadoreño (PCS) and

the Partido Revolucionario de los Trabajadores Centroamericanos (PRTC).The FMLN was one of the main participants in the Salvadoran Civil War. After the Chapultepec Peace Accords were signed in 1992, all armed FMLN units were demobilized and their organization became a legal left-wing political party in El Salvador.

On March 15, 2009, the FMLN won the presidential elections with former journalist Mauricio Funes as its candidate. Two months earlier in municipal and legislative elections, the FMLN won the majority of the mayoralties in the country and a plurality of the National Assembly seats. Funes is now wanted by the Salvadoran authority for corrupt actions, such as illegally money laundering more than $700,000 in his personal bank account and was found guilty of illegal enrichment by the Supreme court. Funes and his son fled to Nicaragua, where they were granted political asylum by Daniel Ortega and became citizens.