The relationship between parental personality traits and how parents socialize their children's emotions is largely unexplored. This study examined the association of personality traits such as Neuroticism and Agreeableness, and emotion traits such as Anxiety and Trait Depression to the strategies parents use to socialize their children's sadness, as well as how these personality and emotion traits and socialization methods relate to adolescents' experiences of sadness. The sample included 110 adolescents (51 females), ranging in age from 11 to 16, and their parents. Measures included parent and youth reports on emotion socialization, measures of parental personality and emotion traits, and checklists on adolescent sadness. Findings indicated that mothers' personality and emotion traits were related to their perceptions of how they socialized sadness in their youth. Fathers' traits were related to their perceptions of socialization, but to a lesser degree than mothers'. Specifically, maternal Neuroticism, Anxiety, and Trait Depression were related to negative strategies of socializing sadness, while maternal Agreeableness was correlated with positive socialization strategies. Parents' personality and emotion traits did not correlate with adolescents' perceptions of parents' socialization of sadness. Maternal personality and strategies of socializing sadness were associated with adolescents' experiences of internalizing problems and sadness, as reported by both mothers and youth. Specifically, mothers who were high in Neuroticism had adolescents who experienced more sadness. Mothers who used more Punishing and Magnifying or fewer Reward or Overriding strategies for socializing sadness had adolescents who experienced more internalizing problems and sadness. In addition, youth reports of parental socialization were associated with adolescents' experiences of internalizing problems and positive mood traits, as reported by both adolescents and their fathers. (Author/HTH)