This dataset accompanies the study "Motor Skills in Children with ADHD: Overlap with Developmental Coordination Disorder" (BMC Psychology). It includes responses from 168 German-speaking parents of children with professionally diagnosed ADHD, assessed using the DCDQ-G and DISYPS-II questionnaires. The data capture motor skills, behavioral traits, and diagnostic information, with summed scores indicating risks for DCD and ADHD. This dataset provides insights into the comorbidity of motor skill challenges in ADHD.