The prospect of upward social mobility is a central motive for international migration. Curiously, the nexus of spatial and social mobility attracted attention only relatively late and existing research on intergenerational social mobility usually concentrates on the constellation within the nation state. This chapter expands on this literature by investigating the intergenerational social mobility of international German migrants from the perspective of the country of origin. First, we focus on the social origin of internationally mobile and non-mobile persons using data from the German Emigration and Remigration Panel Study (GERPS) and the German Socio-Economic Panel (SOEP). How do the two groups differ in their social background? What kinds of capitals do international migrants inherit from their parents? In a second step, this chapter explores the differences in social fluidity between migrants and non-migrants. Does international mobility increase social fluidity? Our findings suggest that German emigrants are positively selected in terms of their social origin. Their parents are more likely to have academic degrees and to belong to the upper service classes compared with non-migrants. Although social fluidity is not significantly higher among emigrants compared with non-migrants, their risk of downward social mobility is significantly reduced.