Objective: The purpose of the present study was to assess distal (i.e., stigma consciousness) and proximal (i.e., internalized homophobia, identity concealment) minority stressors as predictors of sexual intimate partner violence (S-IPV) victimization and perpetration among LGBQ+ U.S. college students, as well as the extent to which hazardous alcohol use and social support moderated these relationships. Method: A crosssectional research design was utilized in a sample of LGBQ+ U.S. college students (n = 1,221) across 20 institutions of higher education who completed an online survey. Structural equation modeling with moderation was used to evaluate if the association between minority stressors and S-IPV victimization and perpetration were moderated by hazardous alcohol use and social support. Results: Social support was unrelated to both S-IPV victimization and perpetration. Hazardous alcohol use was related to S-IPV victimization, but not S-IPV perpetration. Whereas minority stress had a direct effect on S-IPV victimization, there were no direct effects of minority stress on S-IPV perpetration. However, at higher levels of hazardous drinking, indicators of minority stress were related to both S-IPV victimization and perpetration. Conversely, at lower levels of hazardous drinking, minority stress was unrelated to S-IPV victimization and perpetration. Conclusion: S-IPV prevention efforts for LGBQ+ college students should focus on reducing minority stress and hazardous drinking. Future research is also needed to identify additional factors, not measured in the present study, that increase the risk for S-IPV among LGBQ+ college students.