["Journal for the Scientific Study of Religion, EarlyView. ", "\nABSTRACT\nBullying in adolescence has short‐ and long‐term physical and mental health consequences for both victims and perpetrators. Social scientists have extensively examined the causes and consequences of victimization, including the role of religion, but we know little about how religion is associated with bullying perpetration. Religiosity may curb perpetration through the influences of religious socialization or exacerbate perpetration through religious strain and doubt. Using data from the National Study of Youth and Religion Wave 1 (N = 3290), this study addresses how bullying perpetration (i.e., teasing or making fun of others) is associated with key religious characteristics in youth. Results show that youth with high religious salience and youth who reject religious exclusivism were relatively unlikely to perpetrate bullying, while religious doubts and youth group participation were associated with an increased likelihood of perpetration. This study highlights the importance of religiosity as both a preventative and exacerbating factor in bullying perpetration.\n"]