The present study investigated the association between the cognitions and coping related traits of parents of children with ADHD and their behavioral and emotional responses to their child’s symptoms. Current research on ADHD suggests that diagnosis of this neurodevelopment disorder is rising, and parents of children with ADHD face challenges such as increased stress, burdens of the parenting role, and potentially tense relationships with their children. However, there has been a lack of research on relations among parents’ behavioral, emotional, and cognitive responses to their children’s ADHD behaviors. This study collected primary online survey data from 100 parents of children with ADHD who were members of the national organization CHADD. Degree of child ADHD behavior, parent coping related traits, and parent negative attributions about the child were associated with parent anger, anxiety, limit-setting behaviors, and encouraging/coaching behaviors. Research and clinical implications of these findings are discussed.