The MAPU Obrero Campesino (Spanish abbr. MAPU/OC; MAPU Worker-Peasant) was a leftist political party in Chile that was formed after a split of MAPU in March 1973. It claimed to represent the political legacy of Rodrigo Ambrosio, the principal founder of the original MAPU, who had deceased in May 1972. It had two ministers in Allende's government (Fernando Flores and Juan Carlos Concha) and a number of other state functionaries were among its ranks. At the beginning of the 1980s, the party experienced internal ideological conflicts (between “Marxists-Leninists” and “Marxists-Renovators”).