Celebrate World Down Syndrome Day 2025
Join us on March 21st to celebrate and shine a light on individuals with Down syndrome.
Celebrate World Down Syndrome Day!
The 21st day of March (the 3rd month of the year) was selected to signify the uniqueness of the triplication (trisomy) of the 21st chromosome which causes Down syndrome. Every year on March 21st, World Down Syndrome Day is observed to create awareness about Down syndrome.
With your help we want to make this World Down Syndrome Day, 21st March 2025, the biggest and best!

Ways to get involved and fundraise!

Celebrate on 21st March and host a “rock your socks” day! Wear your funkiest socks to symbolise the uniqueness of every chromosome.
Join our sunflower challenge in school, nursery, childminder or community group. Just like sunflowers, every child blooms and grows in their own way.
Take on a 21-themed activity – run 21 laps, do 21 acts of kindness, or something unique to you!
Join us in the skies for a thrilling experience that makes a difference! Jump any day during March 2025. There are a variety of locations to choose from.

Join us in raising just £21 to help us continue supporting and celebrating people with Down syndrome.

Whip up some yummy treats and host a bake sale. Download our bake sale pack with some useful tips, bunting and cake toppers to make your sale stand out.
Raise awareness!
At DSUK, we’re celebrating individuals with Down syndrome every day and we’d love your business to join in! By raising awareness, sharing our mission, and supporting our activities like the 21 Challenge or Rock Your Socks Day, you can help us make a difference.
At DSUK, we’re celebrating individuals with Down syndrome every day and we’d love everyone to join in!
Use our tailored lesson plans, assemblies, and activities to spark meaningful conversations and celebrate differences.
Get your fundraising pack!
Celebrate on social
Join the celebration by sharing your favourite photos and stories. Use our custom World Down Syndrome Day photo frame, share our language matter cards, or our 21 daily facts. Let’s flood social media with positivity — counting down to World Down Syndrome Day!
Shop DSUK today!
Explore our DSUK shop and discover a range of merchandise, and resources. Every item you buy directly supports our vision of a world where everyone with Down syndrome lives their best life.
Spread awareness with our World Down Syndrome Day screensaver
Download our World Down Syndrome Day screensaver and help spark conversations in your workplace, school, or organisation.