While previous research has examined social norms and intergroup contact as predictors of prejudice, there is limited research on their interplay in shaping intergroup attitudes. The results of five studies using correlational and experimental methods in different intergroup contexts consistently showed that the influence of intolerant (vs. tolerant) social norms on prejudice is reduced for people who have contacts with outgroup members. Studies 4–5 further showed that threat perceptions mediate the interaction effects between norms and contact on prejudice. Overall, the research program suggests that intergroup contact is a potent tool for reducing conformity to intolerant and antiegalitarian norms.