AbstractDiaspora politics has been celebrated as a form of transnationalism that can potentially challenge authoritarian regimes. Arguably, opposition groups and political activists can mobilize beyond the territorial limits of the state, thus bypassing some of the constraints to political organization found in authoritarian states. The literature on transnational and extraterritorial repression complicates this model, for it shows that states can use strategies of ‘long‐distance authoritarianism’ to monitor, intimidate and harass diasporic populations abroad. Yet, non‐state actors in the diaspora also sometimes use such repressive strategies to mobilize internally, gain hegemony within the diaspora, and marginalize or eliminate internal rivals. This raises the question of whether such activities can be understood as non‐state forms of authoritarianism. Cases of diasporic politics pertaining to Turkey and Sri Lanka are briefly explored with a view to examining how state and non‐state forms of transnational repression can, under some conditions, result in the dynamics of competitive authoritarianism within a diaspora. In such cases, ‘ordinary’ members of the diaspora may become caught between multiple forms of transnational repression in addition to potentially experiencing marginalization and securitization in their new home.