This article explores the republican critiques of commercial society of Jean‐Jacques Rousseau and Adam Ferguson, focusing on their kindred analyses of social alienation. The joint study of these thinkers reveals a Rousseauean strand of eighteenth‐century republicanism that effectively combined a traditional (yet idiosyncratic) Stoic view of human flourishing with an innovative, proto‐sociological analysis and critique of quintessentially modern social phenomena. Rousseau and Ferguson regard alienation as a loss of wholeness, both in humans individually and in their relations to their (social) (...) surroundings. The article addresses two specific aspects of alienation in commercial society as the two thinkers see it. The first aspect concerns the insincerity underpinning the new moral vocabulary of polite sociability; the second aspect concerns the division of labor. According to Rousseau and Ferguson, this division threatens true human flourishing as well as political liberty. Finally, the conservative dimension of their republican solutions for overcoming alienation and bolstering liberty is considered. (shrink)