The formative framework in prejudice confrontations research has focused on the utility of confrontations to activate one’s self-regulation strategies to interrupt unintentional prejudice, discrimination, and stereotyping. As this framework remains dominant in the literature, little research has examined everyday people’s theories about prejudice that diverge from this framework and accounted for these theories in investigating confrontation rates and outcomes. In this paper, we review key lay theories of prejudice and discuss the ways in which they may influence prejudice confrontations. First, we summarize lay theories regarding the prevalence, origins, and controllability of prejudice. Next, we consider how lay theories of prejudice may factor into the circumstances under which people confront prejudice, goals that people may hold when confronting, and outcomes of confronting for confronters and perpetrators. Throughout, we highlight fundamental research questions and hypotheses that integrate lay theories of prejudice and prejudice confrontations. We propose that better understanding lay theories of prejudice and how they influence prejudice confrontations may help to advance translational and theoretical research in social psychology.