This fact sheet summarizes information on children who have an attention deficit disorder with hyperactivity (ADHD), are gifted, or are both ADHD and gifted. Fourteen diagnostic criteria for ADHD from the Diagnostic and Statistical Manual of Mental Disorders III are listed. A comparison of behaviors associated with ADHD and with giftedness is offered, noting the many similarities. Parents and teachers are urged to consider the situation and setting of problematic behaviors, noting that children with ADHD typically exhibit problem behaviors in all settings (both at home and at school) whereas gifted children are most likely to exhibit such behaviors in situations where they are bored or waiting for other students. Other differences noted include a long attention span (when interested) by gifted students and a greater variability in task performance by children with ADHD. Careful evaluation is urged for students who may be both gifted/talented and ADHD. (DB)