There is a growing interest in understanding the prevalence, correlation and treatment options of adult attention deficit hyperactivity disorder (ADHD). Recent studies indicate that between 30 to 70% of children with ADHD continue to exhibitsymptoms in their adult years. Much remains unknown regarding who is affected by ADHD and its effect on employment, productivity and social interaction. The Attention Deficit Disorder Association (ADDA), a nonprofit organization established in 1989 to provide information, resources and networking to adults with ADHD and to the professionals who work with them, established September 20, 2006as “National ADHD Awareness Day” (U.S. Senate Resolution 544). On this occasion, and in support of ADDA’smost recent initiative to increase recognition of the disorder among employees and employers, the “ADHD in the Workplace” survey was conducted to correlate ADHD prevalence to specific professions/occupations and other demographic categories.