The support and resources embedded in social networks may be especially important for youth aging out of child welfare custody, such that foster youth support network characteristics influence the degree to which individual risk factors translate to poor outcomes during the transition from care. To examine the extent of this network influence on youth outcomes, social network analysis can be used to measure the interconnected relationships in the service network of caseworkers, foster parents and other providers, and in the personal network of biological family and community supports. By assessing these patterns of relationships, researchers can identify social network characteristics associated with particular subpopulations of foster youth who experience relatively successful or unsuccessful transition outcomes. This paper applies social network concepts and related methodology to frame foster youth transition support from a network perspective and to promote the generation of network-informed hypotheses that could expand the scope of research with this important population.