In this article we review the most recent empirical research about the psychology of religion and intergroup prejudices based on race/ethnicity or religious identification. We highlight how social identity fusion, intergroup emotions, perceived value-conflict and threat, and system-justification contribute to degrees of prejudice. We also review connections between religiosity and attitudes toward specific cultural groups (e.g., immigrants, atheists, and religious minority groups). Finally, we conclude with a few recommendations for ongoing research in this area, such as interdisciplinary and person-centered approaches.