In the field of adoption and child welfare, there is ongoing debate and discussion about how white adoptive parents in transracial families construct personal and social relationships and networks to promote cultural belonging and identity development in their children. In spite of this however, there is, to date, no research study that has sought to apply the notion of social capital to understand transracial adoptive families. With its exploration of how white American adoptive mothers construct social capital in raising their transracially adopted children, this paper seeks to contribute to the literature on social capital and families in general, and social capital and transracial families in particular. By drawing upon a qualitative study involving white adoptive mothers’ discursive practices, and multiplex constructions of intersectionality, the paper seeks to offer rich theoretical and empirical insights into social capital and transracial adoption to contribute to the literature in this area.