The study examined the relationships between empathy and peer violence among adolescents, along with gender as a moderator in these associations. Thereby, multidimensionality of empathy (affective and cognitive empathy) and different forms of violence (physical, verbal, and relational) were considered. The participants were 646 high school students (aged 15- to 19-years-old) from Serbia. The findings revealed that only the cognitive dimension of empathy was related to violence, namely to physical and relational violence, while relations between the empathy dimensions and verbal violence were not significant. Gender moderated only the relation between cognitive empathy and physical violence, in a way that there was significant negative relation only among boys. Cognitive empathy was negatively related to relational violence, regardless of gender. The results are discussed in the context of the characteristics of violent interactions among adolescents, and recommendations are given for violence prevention programs in high schools.