Sexual violence is a potential key risk factor for adolescent suicidal behavior but has not been studied extensively. Thus, the current study examined the extent to which sexual assault predicted suicide attempts among adolescent students in the national Youth Risk Behavior Surveillance System survey (2007 data). Gender differences in suicidal behavior overall and among sexual assault victims were examined. The results supported that students with sexual assault histories were significantly more likely (odds ratio [OR] = 6.4) to have reported at least one suicide attempt in the past year than students who did not report sexual assault histories. Male students with a sexual assault history reported suicide attempts requiring medical attention more frequently than male attempters without sexual assault histories, as well as both groups of female suicide attempters. Implications of the findings for suicide prevention and intervention programs are discussed. (Contains 1 figure and 1 table.)