Objective: Provide data on the distribution of parent- and teacher-reported symptoms of ADHD in childhood epilepsy and describe coexisting cognitive and behavioral disorders in children with both epilepsy and ADHD. Method: Eighty-five (74% of those eligible) children (5-15 years) in a population-based sample with active epilepsy underwent psychological assessment. The ADHD Rating Scale–IV (ADHD-RS-IV) scale was completed by parents (n = 69) and teachers (n = 67) of participating children with an IQ > 34. ADHD was diagnosed with respect to Diagnostic and Statistical Manual of Mental Disorders (4th ed., text rev.). Results: Parents reported significantly more symptoms of ADHD than teachers (p < .001). Symptoms of inattention were more commonly reported than symptoms of hyperactivity-impulsivity (p < .001). Neurobehavioral comorbidity was similar in those with ADHD and non-ADHD with the exception of oppositional defiant disorder (ODD) and developmental coordination disorder (DCD), which were more common in those with both epilepsy and ADHD. Conclusion: Symptoms of ADHD are very common in childhood epilepsy but prevalence is influenced by informant.