The purpose of this study was to identify the predictors of addictive personality in adolescents. Methods: The participants were 521 adolescents. Data were collected through self-report questionnaires, which were constructed to include personal-familial variables and psychosocial variables. Data were analyzed with the PASW 18.0 programs. Results: The significant predictors of addictive personality in adolescents were school type, parental violent behavior, gender, self-control, impulsivity, and sensation seeking behavior. These personalfamilial variables and psychological variables explained 64.1% of the variance in addictive personality. Conclusion: These results suggest that addictive personality in adolescents can be changed positively by reducing impulsivity and sensation seeking behavior and increasing self-control.