Previous work has demonstrated the importance of social support and the deleterious effects of peer victimization on mental health among lesbian, gay, bisexual, trans, queer, and other sexual and gender minorities (LGBTQ+) youth. However, most studies on social support, victimization, and mental health have focused on samples with few trans youth and have examined general social support, rather than identity-based social support. In this study, we assess the relationships between identity-based