This study examines the intricate relationship between religion and attitudes towards terrorist violence, with a specific focus on individual sympathy for al-Qaeda and justification for suicide bombings. While religion has the capacity to promote both harmony and social cohesion, as well as division and conflict, it is crucial to explore the complex and contradictory nature of religious beliefs in relation to individuals’ attitudes towards terrorism. To address this paradox, the study differentiates between religion as a belief and religion as an ideology. Drawing from a subset of the 2011 Pew Global Attitudes Survey, encompassing countries with substantial Muslim populations (Egypt, Indonesia, Jordan, Lebanon, and Turkey), the research investigates how religiosity and political Islam influence public attitudes towards terrorism, considering political and economic grievances in these contexts. Multivariate statistical analysis suggests that religiosity and political Islam exhibit distinct associations with the justification of suicide bombings and support for al-Qaeda, and these dynamics vary across countries. Ultimately, the study underscores the importance of perceiving religiosity not as a threat but as a potential remedy to prevent extremism by fostering an educated and deeper understanding of religious principles.