National Siblings Day is on Saturday, April 10, 2027, and it falls on April 10 every year. It honors brothers and sisters the way Mother’s Day and Father’s Day honor parents. Founder Claudia Evart created it in memory of the two siblings she lost.
When Is National Siblings Day?
It’s always April 10, no matter which day of the week that lands on. The date is personal: April 10 was the birthday of Evart’s sister, Lisette.
It isn’t a federal holiday, so schools and offices stay open. Still, governors in 49 states have recognized the day, according to the University at Albany, Evart’s alma mater.
Who Started National Siblings Day?
Claudia Evart, who lost both of her siblings young. Her sister Lisette was 19 when she died in a car accident that also killed their father; Claudia was 17. Her brother, Alan, died 14 years later after a fall, NPR reported.
In late March 1995, Evart was at her local library on her own birthday. She realized she would never again share a birthday with her brother or sister. She set April 10 as Siblings Day that year.
She then founded the Siblings Day Foundation, which became a 501(c)(3) nonprofit in 1998. Presidents Bill Clinton, George W. Bush and Barack Obama each issued letters recognizing the day. In 2022, New York City honored the foundation with an official citation.
What Is the Purpose of Siblings Day?
To give brothers and sisters a day of their own. The foundation’s long-term goal is a national day of recognition, observed every April 10 in the same spirit as Mother’s Day and Father’s Day.
“It’s the most powerful relationship you ever have in your life,” Evart told NPR.
The day covers every kind of sibling. Census Bureau data from 2014 showed about one in six children lived with at least one half sibling. Step-siblings, adopted siblings and the brothers or sisters we’ve lost all belong here too.
How to Celebrate National Siblings Day
- Recreate an old photo: dig out a childhood picture and pose the same way today, matching outfits if you can.
- Cook a family recipe together: make the dish your parents always served on birthdays, over video if you live apart.
- Send a “remember when” text: name one specific memory, like the summer you built a treehouse or the road trip that went wrong.
- Plan a sibling trip: even a day trip back to your hometown counts.
- Start a shared playlist: each sibling adds songs from the years you grew up together.
- Remember a sibling who died: visit a place they loved, cook their favorite meal or share a story about them.
- Help the kids celebrate: let young siblings swap handmade cards or plan a surprise for each other.
Siblings Day Captions and Messages
Posting a throwback photo? Try one of these:
- “Same faces, slightly better haircuts.”
- “Built-in best friend since day one.”
- “You knew me before I was cool. Still here anyway.”
- “Partners in crime, fights included.”
- “Missing you today and every April 10.” (for a sibling who has died)
Frequently Asked Questions
Do half siblings and step-siblings count?
Yes. The day celebrates brothers and sisters in every form, including half, step and adopted siblings.
Is there an International Siblings Day?
The Siblings Day Foundation promotes April 10 beyond the U.S. and tracks other countries that recognize it, but there’s no UN-designated siblings day.
Can only children celebrate?
Sure. Many people honor cousins or close friends who feel like siblings. Others use the day to call a friend whose own sibling has died.
Is National Siblings Day the same as National Sister Day?
No. Separate, unofficial days for sisters and for brothers exist on other dates. April 10 is the day set by the Siblings Day Foundation for all siblings.