In the past two decades in the United States, research has surged on "familism," a multidimensional construct encompassing attitudes and behaviors related to strong attachment, identification, and obligation to the family. In this article, we define familism and argue that it is a crucial way for adolescents to contribute to their social world and achieve a sense of role fulfillment. We also present examples from key studies highlighting the advantages and potential challenges of familism for adolescent adjustment. Lastly, we discuss conceptual and methodological issues to advance the study of familism.