Parental emotion socialization, including processes of the socialization of coping and emotion regulation, is a key factor in shaping children's adjustment in response to acute and chronic stress. Given well-established links between parental depression and youth psychopathology, levels of parental depression symptoms are an important factor for understanding emotion socialization and regulation processes. The present study examined associations among maternal coping and depression symptoms with their adolescents’ coping and internalizing problems. A sample of 120 adolescents (45% female, M = 12.27, SD = 1.90) and their mothers participated in a cross-sectional, multi-informant study. Mothers’ depression symptoms and adolescents’ coping were significantly related to adolescents’ internalizing problems. Adolescents’ coping moderated the association between maternal depression symptoms and adolescents’ internalizing problems, where at low and moderate levels of primary control coping, maternal depression predicted greater internalizing symptoms in adolescents. Further, this study expanded on prior work, demonstrating that the relationship between adolescents’ coping and internalizing symptoms was associated with the degree to which mothers model coping. Taken together, results suggest that maternal coping and adolescent coping serve as salient risk and protective factors in the context of family stress. Findings emphasize a need for researchers to further clarify the role of emotion socialization processes in adolescents’ development of coping in the context of family stress.