The nature of adolescent–parent relationships has been a topic of enduring concern in developmental science. In this article, we review theory and current research on several central topics. First, we define adolescence as a developmental period and briefly discuss current theoretical and analytical approaches. Then, we consider adolescent–parent relationship quality, including developmental trends and individual differences in negative interactions, positive relationships, and conflict resolution, as well as research that examines relationship quality within different family subsystems. Next, we discuss effects of emotional variability and flexibility on parent–adolescent relationships and review research on adolescents’ and parents’ beliefs about parental authority legitimacy. This is followed by a discussion of current research on parenting effects on adolescent–parent relationships, including approaches that provide greater specificity in defining parental control and its links with relationship quality, as well as research on parental monitoring and adolescent information management. We conclude this article with directions for future research.