Every year on the second Sunday of February, the International Day of Prayer for Autism and Asperger Syndrome raises awareness for these developmental disorders. The day is also known as Autism Sunday.

Autistics Speaking Day on November 1 encourages autistic people to tell their stories using whatever means works for them.

Autistic Pride Day on June 18th raises awareness and celebrates the similarities and the uniqueness of people with autism.

National Autism Awareness Month raises awareness for autism and Asperger's syndrome during April.