Objective: The aim of the present study was to examine to what extent parental psychological characteristics and parental behavior are related to psychological problems in obese youngsters. Research methods: Data were collected from 196 families having an overweight youngster (range 10-16 years old) (mean body mass index (BMI) ¼ 31.2; s.d. ¼ 5.3) seeking weight-loss treatment and compared with data from normal weight samples. Behavior problems were measured using the Child Behavior Checklist; the Child version of the Eating Disorder Examination was used to assess eating disorder psychopathology. Parental psychopathology was measured using the Symptom Checklist-90; parenting behavior was assessed with the Ghent Parental Behavior Scale. Results: Parental psychopathology was prevalent in 59.6% of mothers and 35.7% of fathers. Youngsters exceeding the cutoff for problem behavior ranged between 41.4 and 53.1%. Children's problem behavior was most associated with psychopathology in the mother (r ¼ 0.40 for Internalizing and r ¼ 0.37 for Externalizing; both Po0.01). The research findings further revealed that the effects of maternal psychopathology were partly mediated by a specific form of parenting behavior, namely Inconsistent discipline, although the effect was stronger for Externalizing behavior (explained variance: 10%) than for Internalizing behavior (explained variance: 4%). No evidence was found for a mediator effect from parenting behavior on the eating disorder symptoms of the obese youngsters. However, several direct relations emerged, suggesting a negative association between a child's eating disorder symptoms and Positive parenting behavior by the mother (r ¼ À0.20 for Eating concern; r ¼ À0.18 for Restraint eating; r ¼ À0.16 for Shape concern; all Po0.05) as well as by the father (r ¼ À0.25 for Eating concern; r ¼ À0.25 for Weight concern; both Po0.01; r ¼ À0.21 for Shape concern; Po0.05). Discussion: Parental characteristics were associated with psychological problems in obese youngsters, not only in a direct way but also indirectly. The effects were partly mediated by a particular ineffective parenting style, namely inconsistent discipline on the part of the mother. Pediatric obesity treatments should focus more on parenting behaviors and parental characteristics.