Drawing on minutes, publications, diplomatic documents and the written press, I explore the transnational networks of the Chilean right wing within Latin America in the 1950s, especially around the four Congresses against Soviet Intervention in Latin America held in Mexico City, Rio de Janeiro, Lima and Antigua between 1954 and 1958. I argue that the Chilean right wing's participation in those networks alongside other Latin American like-minded actors was based on both its long local experience in fighting communism and its attachment to Cold War anti-communism. In these transnational spaces, some Chilean right-wingers gained recognition and prestige, as was the case with the conservative leader Sergio Fernandez Larrain, largely thanks to his systematic denunciation of supposed Soviet penetration in the Movimiento Nacionalista Revolucionario (MNR), then the ruling party in Bolivia.