Since the mid-1980s, researchers across the United States have uncovered high rates of sexual assault among female college students. However, to advance a better understanding of this gendered type of victimization, and to both prevent and control this problem, the research community needs to identify its major correlates. One that is consistently uncovered in North American campus survey work is negative peer support, especially that provided by male peers. Yet, some earlier studies have found that mixed-sex negative peer support, too, contributes to campus sexual assault. Using recent data from the Campus Quality of Life Survey conducted at a large residential school in the South Atlantic region of the United States, the main objectives of this article are to examine the role of mixed-sex negative peer support in campus sexual assault and to identify the groups of women most at risk of having friends who offer such support.