Attention deficit hyperactivity disorder or ADHD is a psychiatric disorder.
ADHD or A.D.H.D. may also refer to:
- ADHD (band), an Icelandic band, or their 2009 eponymous album
- ADHD (rap band), a Dutch rap band
- ADHD Syndrom, a Polish rock band
- A.D.H.D. (Master Shortie album), a 2009 album by Master Shortie
- ADHD (Joyner Lucas album), a 2020 album by Joyner Lucas
- "ADHD" (Blood Red Shoes song)
- "A.D.H.D" (Kendrick Lamar song)
- Animation Domination High-Def, a programming block on FXX