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World Autism Awareness Day

Let's come together to raise awareness and show our support for World Autism Awareness Day - join us in celebrating neurodiversity!

Friday

April 2027

Last updated February 7, 2026 · by the Holiday Calendar Team

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YEARLY DATEApril 2

OBSERVED INInternationally

CATEGORYAwareness

SUBCATEGORYDisability

INTRO

Introduction

PHOTO

April 2 is World Autism Awareness Day, a day to celebrate the lives of people with autism and show our support for their needs. This day was established in 2008 by the United Nations General Assembly as an international observance to encourage member states to take measures that promote better understanding and acceptance of those living with autism spectrum disorder. Let's join together on this special day in celebration of all individuals affected by autism!

TIMELINE

World Autism Awareness Day Timeline

Autism Identified

Leo Kanner, an Austrian psychiatrist, first identifies autism as a specific neurological condition separate from schizophrenia.

Autism in DSM

Autism is included in the third edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM), officially recognized as a disorder separate from childhood schizophrenia.

IDEA Covers Autism

Under the Individuals with Disabilities Education Act (IDEA), autism is officially listed as a separate category of disability, ensuring equal educational rights for all autistic individuals.

Prevalence Increases

CDC reports that autism affects an estimated 1 in 150 children in the United States, significantly higher than previous estimates.

UN Resolution on Autism

United Nations adopted resolution 62/139 declaring April 2 as World Autism Awareness Day, to be observed every year starting from 2008.

Global Communication Initiative

The UN launches a new initiative for World Autism Awareness Day, focusing on the importance of universally affordable access to digital communication technologies for persons with autism and other disabilities.

GET INVOLVED

How to Celebrate World Autism Awareness Day

Organize a Fundraiser

Organize a fundraiser in your community to support autism awareness and research. Invite all members of the community to participate, as well as local businesses, schools, and organizations.

ATTEND

Attend an Autism Awareness Event

Attend an event near you to show your support for those living with autism. There are many events throughout the year that celebrate individuals on the autism spectrum and promote acceptance and understanding.

WEAR

Wear Blue

Show your support by wearing blue! This is the official color of World Autism Awareness Day, so wear it proudly. You can also decorate your home or office with blue lights in honor of those with autism.

SPREAD

Spread Awareness Online

Share stories and resources about autism on social media or start a blog to spread awareness and educate others about the disorder. You can also use hashtags such as #autismawareness and #lightitupblue to join in conversations online.

MAKE

Make A Donation

Donate to a charity or organization that supports awareness and research of autism. Consider donating time or money to help raise funds for programs that benefit people living with autism.

WHY THIS DAY MATTERS

Why World Autism Awareness Day is Important

To support research efforts

World Autism Awareness Day also serves as a reminder to support research into better understanding autism so that its early intervention, diagnosis and treatment can continue to improve over time. This will enable children and adults affected by autism to get the services they need in order to reach their full potential.

To spread awareness of autism

World Autism Awareness Day is an important day to recognize and raise awareness about autism. It serves as an opportunity to educate the public on what autism is and how it can affect people's lives. By talking openly about this condition, we can help reduce stigma and create a safe environment for those living with autism.

To celebrate diversity and inclusion

Autism is often seen as something that needs to be “fixed” or “cured,” but World Autism Awareness Day provides a platform for celebrating diversity and inclusion instead. This day celebrates people with autism for who they are - unique individuals with their own talents, strengths, and gifts to share!