Academic mobility is usually perceived and discussed as a positive phenomenon — as a prerequisite for building a competitive and successful economy and quality science. Academic mobility has now become essential to building a successful academic career in many research domains. On the policy level the negative impact of academic mobility on researchers’ lives and especially women’s is usually overlooked and marginalized. In my paper I focus on academic mobility in the context of academics’ relationships and family lives. I ask (...) two research questions: What is the impact of mobility on researchers’ relationships? How does mobility affect the lives of the partners of mobile researchers? The analysis is based on i) 16 in-depth interviews with academics from various fields of research about their experiences of long-term fellowships abroad in the early stages of their academic path and on ii) 16 in-depth joint interviews with Czech dualcareer academic couples. The analysis shows that academic mobility has a great and significant impact on the family and partnership lives of migrating researchers. For many, especially the partners of migrating researchers, mobility means they have to make many concessions in their private and family lives. I conclude that the impact of academic mobility on people’s partnership lives is highly gendered because couples’ work and family lives are closely intertwined. (shrink)