ESP: El Partido Obrero (PO) es un partido político de Argentina, de orientación trotskista. Conforma la sección argentina de la Coordinadora por la Refundación de la Cuarta Internacional (CRCI).
Ideología política: Marxismo (trotskismo)
ENG: The Workers' Party is an Argentine Trotskyist (left-wing socialist) political party. It is the largest national section of the Co-ordinating Committee for the Refoundation of the Fourth International.
At the Argentine legislative election, 2009 this party had 1.1% of the vote. Its strongest vote in this and some other recent elections has been in Salta Province in the north west, particularly in the city of Salta itself, its next best was in neighbouring Catamarca.
Its members have included Jorge Altamira, Néstor Pitrola, Gabriela Arroyo, Claudio del Plá and the late Mariano Ferreyra.
It is participating in the Workers Left Front, which had some success in elections in 2011.
Founded: 1964 as Política Obrera (Workers' Policy)