What is complex religion and how does it relate to social inclusion? Complex religion is a theory which posits that religion intersects with inequality, especially class, race, ethnicity and gender. The nine articles in this volume examine a wide array of ways that religion intersects with inequality, and how, as a result, it can create barriers to social inclusion. The issue begins with three articles that examine the role of religion and its intersection with race and racialization processes. It then moves to three articles that examine religion’s intersection with socioeconomic inequality. The issue closes with three studies of how religion’s relationship with the state creates and maintains various status hierarchies, even as some religious movements seek to combat inequality. Together, these articles enrichen our understanding of the complex task before anyone seeking to think about the role of religion in social inclusion.