Abstract After 2 decades of extensive empirical studies on affective intergroup processes, it is now clear that emotional processes play a critical role in the dynamics of intergroup conflict. However, it seems that much of the research in this domain views intergroup relations in a dichotomous manner of pure in‐groups and out‐groups despite the developments in the realm of social identity that suggest otherwise. We here suggest that the incorporation of more complex social identity models into the study of affective social science can not only help to better understand intergroup conflict dynamics but can also offer new possible venues for conflict resolution. Specifically, we claim that the presence of groups with multiple identities, which include both the in‐group's and the out‐group's identity (e.g., biracial groups that encompass both a White and a Black social identity) can impact intergroup emotional processes between the different groups comprising those multiple identities (e.g., between Whites and Blacks). Accordingly, we review recent developments in the literatures of emotion in intergroup conflict and multiple social identity and offer a conceptual integration of the two. Thus, we attempt to enrich the theory in both fields, better explain intergroup conflict, and possibly pave the way for the development of novel conflict resolution methods.