Radio Sur is a community radio station based in Buenos Aires, Argentina. It was founded in 2003 and operates as a nonprofit organization, focusing on social and cultural issues. The station promotes independent journalism and provides a platform for marginalized voices, including grassroots movements and local artists. Radio Sur broadcasts on FM 88.3 and streams online, offering diverse programming that includes news, music, and educational content. It is part of Argentina's broader network of alternative media outlets.