The Puerto Rican Socialist Party was a Marxist and pro-independence political party in Puerto Rico seeking the end of United States of America control on the Hispanic and Caribbean island of Puerto Rico. It proposed a "democratic workers' republic".

Throughout the history of Puerto Rico, its inhabitants have initiated several movements to gain independence for the island, first from the Spanish Empire between 1493 and 1898 and since then from the United States. Today, the movement is most commonly represented by the flag of the Grito de Lares (Cry of Lares) revolt of 1868.