OBJECTIVE: To examine rates of reported childhood maltreatment in binge eating disorder (BED), and to explore associations with obesity, gender, eating disorder features, and associated functioning. RESEARCH METHODS AND PROCEDURES: Subjects were 145 consecutive outpatients with BED as defined in the Diagnostic and Statistical Manual of Mental Disorders, 4(th) edition. Subjects were interviewed and they completed questionnaires to assess eating disorder features and functioning. The Childhood Trauma Questionnaire was given to assess childhood maltreatment in five domains (emotional abuse, physical abuse, sexual abuse, emotional neglect, and physical neglect). RESULTS: A total of 83% of BED patients reported some form of childhood maltreatment. A total of 59% of BED patients reported emotional abuse, 36% reported physical abuse, 30% reported sexual abuse, 69% reported emotional neglect, and 49% reported physical neglect. There were no differences in the distribution of any form of childhood maltreatment by gender or by obesity status. The different forms of maltreatment were not associated with variability in current body mass index, binge eating, or in the attitudinal features of eating disorders. Only one of the five forms of maltreatment (physical neglect) was associated with dietary restraint in women. Emotional abuse was significantly associated with greater body dissatisfaction, higher depression, and lower self-esteem in men and women and sexual abuse was associated with greater body dissatisfaction in men. The different forms of maltreatment were unrelated to the age at onset of overweight, dieting, or binge eating. DISCUSSION: BED outpatients reported a wide range of childhood experiences of maltreatment that do not differ by gender or obesity status. Different forms of maltreatment were not associated with the onset of overweight, dieting, or binge eating, or with variability in current body mass index or eating disorder features (except for one association between physical neglect and dietary restraint). Reports of emotional abuse were associated with greater body dissatisfaction and depression and lower self-esteem in men and women and sexual abuse with greater body dissatisfaction in men.