In 2003 the Center for Disease Control reported that 7.4 percent of students engaged in sexual intercourse for the first time before age 13 (YRBS, 2003). It has been reported that there is an association between early sexual intercourse and other youth risk behaviors such as substance abuse (Duncan, Strycker, & Duncan, 1999). According to Mott, Fondell, Kowaleski-Jones and Menaghan, (1996) early substance abuse doubles the chance that a child will engage in sex before the age of fourteen. If an association exists between substance abuse and early sexual intercourse, does an association also exist between early sexual intercourse and other risk behaviors such as suicide? Adcock, Nagy, and Simpson (1991) report those who engage in sexual intercourse and consume alcohol are at greater risk for suicidal ideation than abstainers. The aim of this study is to further explore the relationship between early sexual intercourse (before age 13) and self reported suicidal ideation and attempt. The participants were 2299 high school students who completed a modified version of the Youth Risk Behavior Survey (1999). The modified survey contains 94 questions. Four questions focus on suicidal ideation and attempt. Four questions focus on sexual activity. Two additional questions are related to sexual activity, but focus on issue of abusive behavior. Of students that reported that they had intercourse before the age of 13, 34.8 percent indicated that they had considered attempting suicide in the past 12 months compared to 12.8 percent of students who were abstinent or had engaged in intercourse during or after the age of thirteen. Of students that reported that they had intercourse before the age of 13, 30.9 percent indicated that they had made a suicide attempt in the past 12 months compared to 7.7 percent of students who were abstinent or had engaged in intercourse during or after the age of thirteen. Participants who indicated having intercourse before the age of 13 were also more likely to report that sexual activity had been forced on them; 34 percent compared to 2.6 percent of students who reported abstaining from sexual intercourse or initiating intercourse on or after the age of 13. Examination of odds ratios revealed that participants who engaged in intercourse before the age of 13 were at increased risk for suicidal ideation and attempt. This research suggests that early sexual activity may be a warning sign of suicide risk.Keyword(s): research, violence/prevention, youth-at-risk