Diaspora networks in international business are an influential construct in understanding contemporary international business (IB), respective networks, and global activities. This chapter analyzes the evolution of the research related to diaspora networks in IB. The purpose of this review is multifaceted. First, it introduces the concepts diaspora and diaspora networks and links them to economy and IB. Second, it identifies the key aspects of diaspora-related research that are significant for IB and/or require additional attention in the IB domain. Furthermore, it provides a state-of-the-art review of the diaspora networks in IB. The review comprises multiple viewpoints on diaspora networks: organization and structure, resources, diaspora entrepreneurship, socio-cultural dimensions and knowledge transfer as well as underlying emotional and behavioral frameworks. The chapter contributes by synthesizing and modifying the extant knowledge base and evaluating it critically. The article concludes with a discussion of the implications for theory modification, IB management, and policy making, and it proposes future research directions.