Peer violence represents a common form of aggressive behavior among children and adolescents. It can significantly impact the mental health of victims. Self-concept, which refers to how an individual perceives their abilities and worth, plays a crucial role in shaping behavior, emotions, and interpersonal relationships, and is often disrupted in individuals who have experienced violence. The research conducted in this study analyzes the impact of peer violence on the self-concept of students. A questionnaire was distributed to a sample of 231 students from various faculties. The sample includes students who have experienced different forms of peer violence, as well as those who have not been exposed to violence. Data analysis was performed using statistical methods, including t-tests and ANOVA, to assess the difference in self-concept levels between different groups. The results indicate a significant difference in self-concept levels between students who were victims of violence and those who were not. Students exposed to violence, particularly physical violence, had lower average levels of self-concept. The high standard deviation among victims of psychological violence suggests varied individual reactions to this form of violence, complicating a full understanding of its impact. Gender was not found to be a significant factor in shaping self-concept among victims of peer violence, leading to the rejection of the second hypothesis. The study revealed that the majority of participants were female, while the number of male participants was significantly smaller, which may present a limitation in analyzing the results. The research underscores the importance of early detection and intervention in cases of peer violence to mitigate its negative effects on self-concept and mental health. The results provide a foundation for further research and the development of strategies to reduce the impact of peer violence.