The purpose of this study was to compare attitudes toward rape in Poland, Hungary, and Norway. Based on system justification theory, we examined whether country of origin predicts levels of rape myth acceptance, beliefs in the biological origins of gender differences, and ambivalent sexism. There is also some evidence that beliefs in the biological origins of gender differences predict rape myth among Polish students and that this relationship is mediated by hostile sexism. The current study aimed to test whether this model can be applied to other countries. Participants ( N = 266) were from Poland, Hungary, and Norway. The study was conducted online. The dependent and independent variables were measured with questionnaires. Polish participants had significantly higher levels of rape myth acceptance, beliefs in the biological origins of gender differences, and ambivalent sexism than Norwegian and Hungarian participants. Our proposed model was confirmed: belief in the biological origins of gender differences was associated with rape myth acceptance, with hostile sexism as a mediator. Benevolent sexism also turned out to be a mediator between beliefs in the biological origins of gender differences and rape myth acceptance. The mediational model of the relationship between beliefs in the biological origins of gender differences and rape myth acceptance can be applied to all three countries. This result suggests that anti-rape educational interventions should take into account the role of culture and society in the construction of gender differences.