Men's negative attitudes toward women represent a known risk factor for sexual aggression perpetration. Sexual aggression is a widespread public health concern, especially among emerging adults, and is associated with a multitude of negative consequences. The current study evaluated whether pornography-related perceived peer norms, own approval, and self-reported use are associated with negative attitudes toward women in a sample of college men. Types of pornography examined included pornography (in general); pornography that included portrayals of bondage, whipping, and spanking but without explicit dissent (i.e., pornography that depicted bondage/physical aggression); as well as pornography consisting of sexually explicit rape depictions in which force is used. Self-report measures assessing the frequency of pornography exposure, self-acceptance of pornography use, and perceived peer norms were collected from 283 college men. A multiple linear regression model revealed that only perceived peer norms for acceptance of pornography that depicted rape was positively associated with negative attitudes toward women. Findings highlight the importance of better understanding and addressing perceived peer norms in sexual assault prevention programs for college men.