The aims of this study were to analyze the differences in the mothers' and fathers' socialization styles depending on their children's sex; whether there are differences in hostile, benevolent, and ambivalent sexism, and neosexism as a function of both parents' socialization styles; and whether the parents' educational level affects their level of sexism and their children's sexism. The sample included 1,455 adolescents and their parents (764 mothers and 648 fathers). The results showed no differences in the socialization style of the father with his children's sexism, but the mother used a more authoritarian style with her daughters. The parents' socialization style had little influence on their children's sexism, although it had a higher impact on the sons' sexism. The father's style had less influence than the mother's on their sons' sexism, and it had no influence on their daughters' sexism. The indulgent style of both parents had the highest relation with a low level of sexism. Moreover, a negative correlation was found between the parents' educational level and their level of sexism, as well as between the mother's educational level and her daughters' sexism. To conclude, the indulgent style and the mother's high educational level promote fewer sexist attitudes.