Objective: This study aimed to compare the level of peer bullying in delinquent and non-delinquent children between the ages of twelve to fifteen and to determine the familial factors that may influence their peer bullying levels. Methods: The study sample included 103 juvenile delinquents and 103 non-delinquents children who were of the same age and sex of those in the first group. General Information Questionnaire and Peer Bullying Scala, was used in the study. Two way variance analysis and Scheffe Test were used as statistical methods. Results: The findings of this study indicated that in some dimensions peer bullying scores vary depending on the number of siblings in the family, birth order, the educational status of the mother and father (p [Anadolu Psikiyatri Derg 2011; 12(1.000): 76-83]