The aim of the current research was to develop and test the psychometric properties of the Perceived Cognitions of the Family of Origin Questionnaire (PCFO-Q) – a new measure of perceived family support for rape culture. Exploratory and confirmatory factor analyses provided evidence for seven factors of the PCFO-Q: Subordination of Girls, Hostility toward Women, Inferior Child Roles, Authority and Dominance of Men, Justification of Violence, Rape Myths, and Family Secrets. The results indicated excellent reliability and good construct validity. PCFO-Q scores were positively associated with relationship difficulties, emotion regulation difficulties, self-esteem, modern sexism beliefs, and mental health problems.