Introduction: According to the World Health Organization, al¬cohol is the most widely consumed psychoactive substance in the world. There is high rate of alcohol dependence in general population. Alcohol use generally starts during ado¬lescence and tends to escalate in adulthood. Alcohol dependent patients are having high rate of co morbid personality disorders. Our current study was planned to find out the prevalence of personality disorder in alcohol dependent patients. Method – A cross sectional study was carried out on 266 patients of alcohol dependence with age between 18-55 years. Who were admitted at department of Psychiatry, SMS Medical College, Jaipur after qualifying on the inclusion and exclusion criteria. All data was analyzed by frequencies. Results – In our study we found that (52.3%) of patients had co morbid personality disorder. Most common types of personality disorder we found in this study were Anxious (15.4%), Dissocial (10.2%) and dependent (7.1). Conclusion – Almost half of the patients with alcohol dependence were having associated co morbid personality disorder and most common type of personality disorder we found was anxious and second most was dissocial type.