Objective: To examine the incidence of headache symptoms consistent with migraine and tension-type headache (TTH) in children with anxiety disorders. Method.: Parents of children with anxiety disorders (n = 27) and children without anxiety disorders (n = 36) completed a headache questionnaire based on the International Classification of Headache Disorders (2nd edition) criteria. Results: Children with anxiety disorders had a higher incidence of headache symptoms consistent with migraine and TTH compared to children without anxiety disorders. Girls with anxiety disorders and children with separation anxiety disorder had a higher incidence of headaches compared to girls without anxiety disorders and children with other anxiety disorders respectively. Children with anxiety disorders and headaches had higher self-reported anxiety symptom severity compared to children with anxiety disorders without headaches and children without anxiety disorders. Conclusion: Findings highlight an overlap in anxiety and headaches in children and warrant further research on factors that contribute to the etiology and maintenance of these co-occurring problems.