This special issue delves into the complex and dynamic processes of identity and community formation within Europe and Asia amid the intertwined forces of globalization, regionalism, and interregionalism. Through empirical research and theoretical innovation, the articles challenge established paradigms, exploring the fluid, contested nature of regional identities shaped by historical legacies, cultural narratives, and geopolitical strategies. This collection not only provides a critical examination of identity in contemporary international relations but also a dialogue on the implications for regional policy and governance, urging policymakers to consider the mutable nature of identities in their strategies. The focus on Europe and Asia highlights their unique interregional dynamics, making a compelling case for their pivotal role in global regionalism and identity politics.