The objectives of this study are to understand the association between high school religious context in adolescence and the reporting of same-sex attraction and sexual identity in young adulthood and how these associations vary by gender. Previous studies have considered how high school contexts shape the well-being of sexual minority youth, yet few have examined the extent to which these contexts shape sexual desire and identity. We use data from the National Longitudinal Study of Adolescent Health and find that among women, school religious context is negatively associated with the likelihood of reporting same-sex attraction in young adulthood. We also find a negative association between school religious context and reporting a bisexual or flexible sexual identity among men and women. Finally, we find a positive association between mean school religious attendance and reporting a homosexual identity among men and women. (Contains 4 tables, 3 figures and 7 footnotes.)