Significant health problems of adolescents involved in bullying has been documented in the research literature. Research consistently reports that youth who are involved in bullying are at a significant risk of health problems (e.g., depression, anxiety, sleeplessness). Likewise, those with health problems are at an increased odds of bullying and peer victimization. The Special Issue, "Bullying, Peer Victimization, and Child and Adolescent Health", of the Journal of Child and Family Studies brings together scholars around the world to disseminate their research findings on the relevance of bullying and peer victimization in children and adolescent's health and mental health.