Over the past decade, a consensus has crystallized recognizing the significance of family firm internationalization in international business (IB) research. This recognition comes with substantial opportunities, yet it also presents challenges, such as the pressing need for a more cohesive integration of the family business and IB domains. In this article, we (re)emphasize the relevance of family firm internationalization for IB research considering three IB grand challenges and two important aspects of internationalization where family firms can particularly contribute. We also propose several theoretical and methodological avenues for future studies to help further increase the understanding of family firm internationalization and of IB theories. Finally, we provide an overview of the core insights from the articles included in the related special issue and develop integrative conclusions about the research.