Contrary to the conventional view that minority regimes are vulnerable to breakdown, many of these regimes exhibit remarkable durability. From 1900 to 2015, minority autocracies that exclude a single majority ethnic group (e.g., regimes in Bahrain, Syria, and Apartheid South Africa) remained in power twice as long as other autocracies. This article argues that this durability is rooted in their unique ethno-political configuration, which enables them to foster a largely unconditional loyalty due to the ruling minority’s fear of being subjected to majoritarian rule. Such loyalty endows them with an exceptional capacity to withstand major challenges by fostering in-group demobilization and policing, pro-regime countermobilization, and coethnic elite loyalty. This article employs a multi-method approach, using a novel dataset of minority regimes and a case study of Bahrain based on original interviews. The findings highlight the conditions under which ethnic group loyalty can play a central role in autocratic survival.