- Source: Frente Obrero (disambiguation)
Frente Obrero (Spanish for 'Workers' Front') was an anti-Sandinista trade union in 1970s–1980s Nicaragua.
Frente Obrero, and similarly named organisations, may also refer to:
Workers' Front (Spain), electoral front for the Marxist–Leninist Party (Communist Reconstruction) (founded 2018)
Workers' Liberation Front (Curaçao), a populist centre-left political party (founded 1969)
Workers' Front of Catalonia, an anti-Francoist movement (1961–1970)
Socialist Workers Front (Marxist–Leninist), a minor anti-revisionist communist party in Panama (1973–1980)
Worker Peasant Student and Popular Front, a minor communist party in Peru, now associated with the Workers' Party of Korea (DPRK) (founded 1977)
