03/21/2026
Each year on March 21, people around the world celebrate World Down Syndrome Day to raise awareness, promote inclusion, and celebrate the abilities and contributions of people with Down syndrome. The date (3/21) represents the three copies of the 21st chromosome, which is what causes Down syndrome.
This year’s global theme is “Together Against Loneliness.” While everyone can feel lonely sometimes, research shows people with intellectual disabilities experience loneliness at much higher rates. True inclusion—friendships, welcoming communities, and meaningful relationships—helps ensure everyone feels connected and valued.
🧦 How you can show support:
• Wear bright, bold, or mismatched socks to start conversations about inclusion
• Take time to learn more about Down syndrome
• Invite someone to join a conversation, activity, or group
• Celebrate the unique strengths and voices of people with Down syndrome
Small actions can make a big difference. Together, we can create communities where everyone belongs.
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