--- - |2 Abstract An emerging body of research shows that parental socialization of positive affect (PA) is implicated in youth functioning, although most evidence comes from Western countries. In this study, focusing on adolescent girls in India, we examined associations among reports of parents’ responses to adolescent PA, adolescent PA regulation, and adolescent depression. A total of 238 adolescent girls (13–18 years) and one of their parents (54% mothers) were recruited. Participants completed questionnaires at the beginning of the school year (time 1) and five months later (time 2). At the bivariate level, parents’ dampening and adolescent girls’ dampening responses were each associated concurrently with adolescent depression at time 1. However, there were no significant direct associations between time 1 parents’ dampening or enhancing responses and time 2 adolescent girls’ depression (after controlling for time 1 depression). Using half‐longitudinal models, a significant indirect effect was found from parental dampening of PA to increased adolescent depression via adolescent girls’ own increased dampening. No indirect effect was found from parental enhancing to adolescent depression via adolescent girls’ increased positive rumination. These findings are the first to demonstrate the relevance of PA socialization for girls in a non‐Western culture. - Social Development, EarlyView.