In this presentation, it is argued that nationalism was one of the most important characteristics of socialist movement in Turkey in the 1960s. When we look at the socialist movement in Turkey in this period, we encounter with the concept of nationalism, in other words, Turkish socialists’ deliberate attempt at articulating socialism with nationalism, presenting themselves as the real representatives of nationalism in Turkey. The aim of this study is to investigate the uneasy relationship between nationalism and the Turkish left in the 1960s in particular and between socialism and nationalism in general. One important concern of this study is to investigate the internal sources of the articulation of socialism with nationalism in Turkey. A ‘leftist’ variant of Kemalism, becoming a hegemonic discourse within the ranks of the Turkish left in the 1960s, played a very crucial role in the attempts of the leftist intellectuals of the period at accommodating nationalist principles within the idiom of socialism. Turkish left in the 1960s re-invented Kemalism as a progressive, anti-imperialist, anti-feudal and developmentalist outlook. But, Turkish socialists’ engagement with nationalism should be located within an international context and perspective. Turkish socialists were not alone in their efforts to reconcile nationalism with socialism. The history of the ideological and practical accommodation between socialism and nationalism from mid-19th century to the post-colonial era reflects a change from “socialization of the nation” to the “nationalization of socialism” and shows us how this relationship changed from hostility to affinity. Turkish socialists of the 1960s received an important part of their strategic and tactical inspirations from those post-colonial experiences. In this sense, this study analyzes Turkish left’s experience with nationalism also by reference to international experiences, with a special emphasis on the Third Worldist variant of the articulation of socialism with nationalism.