State repression of ethno-religious minorities is a widespread practice among dictatorships. Nevertheless, political science literature on the topic presents inconsistent findings regarding the causes and consequences of this phenomenon, largely due to the challenges associated with researching human rights violations in non-democratic regimes. The present systematic literature review covers theme-related articles indexed in the Web of Science database and published in English, Spanish, Japanese, Korean, or Chinese from January 1990 to December 2022 (n=169). By reviewing a wide array of theoretical frameworks, methodologies, and data collection strategies, this article identifies causes, consequences, and endogenous relationships, as well as key gaps in the literature on ethno-religious repression in non-democratic settings, providing a solid starting point for further research.
