Violence is a serious social issue that affects millions of individuals, families, and communities every year. It transcends across racial, age, gender, and socioeconomic groups, and is considered a significant public health burden in the United States. The purpose of this entry is to provide an overview of violence as a broad yet complicated concept. Definitional issues are discussed. Additional prevalence rates of select types of violence are presented in addition to risk and protective factors associated with violent behavior. The entry concludes with a summary of approaches to address violence in the context of prevention and intervention strategies.