This article investigates the extended family social support networks of Caribbean Black adults (Afro-Caribbeans). Although there are several ethnographic accounts of familial ties and support exchanges among Black Caribbean immigrants, only a handful of studies use quantitative data. This article uses data from the National Survey of American Life, which contains the first national probability sample of Caribbean Blacks in the United States. Age, gender, income, material hardship, and immigration status were all associated with at least one of the four indicators of family support networks. Subjective family closeness and frequency of family contact were significantly associated with both giving and receiving informal support. A significant age and parental status interaction for receiving support indicated that older adults without children received assistance from their extended families less frequently than older adults with children. Overall, study findings affirm the importance of extended family networks for Caribbean Black adults.