Background and objective Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder affecting children’s academic and social performance. This study aimed to assess the knowledge and misconceptions of primary school teachers in the Qassim region regarding ADHD. Methodology A cross-sectional study was conducted from March 2024 to October 2024 involving 381 primary school teachers in the Qassim region, Saudi Arabia. Data were collected using a self-administered…