The Attention Deficit Disorder Association (ADDA) is the world's leading nonprofit organization focused exclusively on adults with ADHD. Since 1989, we've grown into the primary source of information, resources, and connection for adults with ADHD and the people who support them, worldwide. We're proud members of the World Federation of ADHD. Everything we do comes back to our main goals: helping people understand what ADHD really looks like and supporting adults with ADHD to feel less alone in their journeys.

ADDA provides opportunities to connect, for every type of ADHD brain. Here's how: peer support groups and body doubling sessions, so you're never figuring it out on your own. Expert-led webinars and TADD Talks. A professional directory connecting you to professionals who actually understand ADHD. And every year, we co-host the International ADHD Conference, the biggest event of its kind. Every part of ADDA is created by adults with ADHD, for adults with ADHD.