IntroductionrnAttachment style is the pattern of an individual interaction with others, which is believedrnto be determined in the early years of life and important for the psychological wellbeingrnof an individual. Based on the nature of caregiver and an individual response, differentrnattachment styles will be developed. To this end, in this research the patterns ofrnattachment styles among psychiatric patients were examine.rnObjectivernThe present study aimed to describe the patterns of attachment styles among clinicalrnpatients.rnMethodologyrnThis study was conducted with a sample of 429 psychiatric patients who completedrnrelationship questionnaires [9], a measure that identifies patterns of their attachmentrnstyles along with demographic questionnaires.rnResultrnHigh proportion of insecure attachment (especially Fearful and Preoccupied) (62.1%)rnwas more prevalent than secure attachment (37.9%) among psychiatric patients. Thernrelationship between patient’s attachment styles and DSM-5 based diagnosis was notrnsignificant (X=9.34; P0.005). There was no significant association of attachment stylesrnwith demographic variables except for gender (Xrn=14.454; df=3, P0.005).rnConclusionrn2rnThe proportion of insecure attachment styles is high in psychiatric patients than securernattachment styles. The present study partially supported previously conducted westernrnstudies suggesting an association between attachment styles and psychopathology.