Objective: Different prevalence rates are reported for dissociative disorders (DD) in different clinical populations (inpatient, outpatient, emergency). It is around 10% among admissions to psychiatry outpatient clinics. Since DD harbors disruption/discontinuation of memory, identity, emotion, and perception many other psychiatric symptoms may be triggered by it. On the other hand, high amount of childhood traumatic experiences in DD patients may be associated with comorbid trauma related psychiatric disorders among them. We aimed to determine the diagnostic distribution of DD in psychiatric outpatients; to show the types of childhood traumatic experiences, their frequencies and sub-types, and co-morbid psychiatric disorders related to these traumas; and to compare the patients with and without DD diagnoses.