This study examined the prevalence of online pornography viewing and its psychosocial correlates among a sample of young Chinese men in Hong Kong. A total of 229 participants completed a questionnaire designed to measure their online pornography viewing, peer and parental influences, openness to experience, and various types of sex-related attitudes. Results showed that online pornography viewing was common and was strongly associated with peer influence and susceptibility to peer pressure. Moreover, participants who reported to have more online pornography viewing were found to score higher on measures of premarital sexual permissiveness and proclivities toward sexual harassment. Conceptual and applied implications of these findings are discussed.