The Revolutionary Left Front (Spanish: Frente Revolucionario de Izquierda, abbreviated FRI) is a political party in Bolivia, founded in 1978.

[2] Lidia Gueiler Tejada was the vice president of FRI.[4] The declaration of principles of FRI reads that "FRI is the political instrument of the masses, which enables the accumulation of forces in order to defeat the dictatorship, impose democratic freedoms and achieve national liberation.

[8] Morales Dávila also broke away from FRI. FRI became little more than the public facade of PCB(ML), as other factions had deserted it.

In 1989 and 1993 elections, FRI was part of the Patriotic Accord (the electoral pact between Hugo Banzer's Nationalist Democratic Action and the Revolutionary Left Movement) winning four and two seats respectively.

On October 6, 2018, Carlos de Mesa Gisbert announced on his YouTube channel, that he would run for president under the Revolutionary Left Front party, almost one year before the 2019 Bolivian general election.

[19] The party supported the candidature of Mario Cossío [es; ko] for governor of Tarija in the 2010 elections.