Policy makers often ascribe sports clubs an important societal role, as they can encourage the integration of people with a migration background. Questions then arise as to the extent that members with a migration background are integrated in sports clubs and what the factors are that play a role in this integration. The data for this research are drawn from a comparative study of 10 European countries. The analyses take a multidimensional approach to social integration and differentiate between the dimensions of understanding/acceptance, interaction, and identification. The results show that members with a migration background are relatively well integrated, but less so than other club members. There is a positive association between social integration and the volunteering, participation in competitions, long-term membership, and sports activities in teams.