Revolutionary Socialist Party (Peru)

The Revolutionary Socialist Party (Peru) (Spanish: Partido Socialista Revolucionario, PSR) was a left-wing political party in Peru. It emerged in the late 1970s as a split from the Peruvian Communist Party, specifically following a faction opposed to the party's support for the military government of General Juan Velasco Alvarado.

The PSR advocated for a socialist transformation of Peruvian society, emphasizing the need for land reform, nationalization of key industries, and greater worker participation in governance. The party’s ideology blended elements of Marxism-Leninism with a focus on the specific realities and challenges facing Peru. It sought to mobilize peasants, workers, and students to achieve its revolutionary goals.

The party participated in elections, often forming alliances with other leftist groups. It aimed to build a broad-based anti-imperialist front. Prominent figures associated with the PSR included labor leaders, intellectuals, and former military officers who had been involved in the Velasco government's reform efforts but later became disillusioned.

Over time, the PSR's influence waned as Peruvian politics became increasingly polarized and dominated by other political forces, including the rise of Maoist insurgent groups like Shining Path. The party's activities gradually decreased in the late 1980s and early 1990s.