Using a subset of youth from a sample of 3,636 Canadian adolescents, the present study examined sexual orientation and victimization experiences in high school. A total of 130 adolescents indicated they were gay, lesbian, bisexual, or questioning their sexual orientation. Significantly more adolescents identified as bisexual (N = 50) or questioning (N = 68) than as gay or lesbian (N = 12). Sexual-minority and questioning youth were more likely than heterosexual youth to be victims of bullying, peer sexual harassment, and peer or dating-partner physical abuse. Implications of victimization on questioning and sexual-minority adolescents' mental health are discussed.