The purpose of this study was to examine the influence of two independent variables; emotional intelligence and big five personalities, on the dependent variable, namely the bullying behavior of teenage santri at pesantren (Islamic boarding schools) in West Sumatra. This study used a quantitative approach with multiple regression analysis methods with a significance level of 0.05 or 5%. The sample consisted of 200 santri in pesantren of West Sumatra, taken using a non-probability sampling technique. The data collection instruments used the Wong and Law's Emotional Intelligence Scale, the Big Five Inventory and the Revised Olweus Bullying/Victim Questionnaire (OBVQ). The results of this study indicate that there is a significant influence on...