Objectives: Personality inventories and clinical interview are commonly used for diagnosis of personality disorders. The present study was designed to investigate the relationships between findings of clinical and structural interviews on one hand and Millon Clinical Multiaxial Inventory, 2nd edition (MCMI-II) findings on the other. Method: One hundred and forty clients out-patient clinic of Shahid Esmaeili Psychiatric Center were assessed by using clinical interview, structural interview and MCMI-II. The data were analyzed for finding convergent validity between the measures. Results: The results revealed mild satisfactory relationship between interview's findings and MCMI-II profiles. Conclusion: The possibilities relevant to the findings are discussed. It seems that heterogeneity of the symptoms in formation of the axis II of diagnosis of personality disorder (according to DSM-IV criteria) and complications relevant to the structure of MCMI-II particularly, conceptualization congruous to the questions presented in the instrument are involved.