The current study examined the role of moral disengagement in cyberbullying participant role behavior among college-aged individuals. Participants included 434 students who completed surveys measuring their participation in cyberbullying, including online bystander role behaviors, as well as their moral disengagement. Regression analysis results indicated that moral disengagement was positively associated with cyberbullying perpetration, cyberbullying victimization, passive bystanding online behavior, and reinforcing online behavior. The current study furthers knowledge on the associations between online bullying-related behavior and moral disengagement and could lead to necessary cyberbullying prevention and intervention support for young adults.