This chapter provides a selective review of research on social support among older African American, Hispanic, Asian American, and Native American adults. It focuses on social support as a dependent variable in relation to different sources and types of aid provided to older African American, Hispanic, Asian American, and Native American adults. The chapter highlights the findings in three specific areas: marriage and romantic relationships, extended family and non-kin as sources of informal social support, and black-white differences in informal social support. Informal social support networks are critical for individuals of all ages but especially for older adults who are dealing with difficult life circumstances. Older African Americans depend on informal social support networks of family and friends for assistance in emergency situations, as well as for help with various tasks of daily life. Elderly Asians often utilize kin and social support networks for a variety of reasons.