This article examines aspects of the history of socialist Yugoslavia’s contribution to creating a transnational Non-Aligned Movement (NAM) culture. It does so by analyzing cultural diplomacy on the Yugoslav cultural and political scene between the 1950s and 1980s. The cultural diplomacy of Yugoslavia and its nonaligned partners is seen as a form of political agency, paralleling and supplementing larger activities of forming economic and political cooperation in the Global South. Yugoslavia’s role in building NAM culture was instrumental in nurturing nascent transnationalism, which was born out of anti-colonial movements following World War II. Cultural events, bilateral agreements, and cultural institutions were used to complement Yugoslav participation in an anti-colonial, anti-capitalist struggle; they promoted NAM ideals and sought to create transcultural networks that would counter Western cultural hegemony. Such examples of solidarity were based in a modernist cultural ethos, but espoused political, social, and cultural forms that were indigenous to various NAM countries. For Yugoslavia, nonaligned modernism and transnationalism solidified the country’s transition from a hardline, Soviet-style state to a more open, humanist-socialist one. The history of transnational collaboration, examined through the narrative of cultural work, is an example of Yugoslav attempts at building political agency and international cooperation through the promotion of nonaligned ideals.