How to Throw the Ultimate National Siblings Day Party

Every 10th of April, National Siblings Day rolls around. And it's an absolutely perfect excuse to celebrate the built-in best friends (or cheeky rivals!) that are your brothers and sisters. 

Whether you’re thick as thieves or laugh about childhood squabbles, throwing a party is a brilliant way to make new memories together.

Here’s how to plan a National Siblings Day bash that’s full of laughs, love, and maybe a little friendly competition.

1. Pick the Perfect Theme

Make the party feel personal with a theme that taps into your shared history. A few ideas:

Throwback Party – Dress up like the era you grew up in and blast nostalgic tunes.

Sibling Olympics – A series of silly challenges to determine once and for all who the ultimate sibling is.

Pajama Party – Keep it cosy and chilled, complete with childhood snacks and a film marathon.

2. Create a Sibling Playlist

No party is complete without music. Put together a playlist of songs that remind you of road trips, bedroom karaoke sessions, or those cringe-worthy dances you did as kids. Throw in a few songs your parents used to play on repeat—it’ll add a fun touch of family nostalgia.

3. Memory Lane Decor

Get crafty with the decorations! Print out old photos and hang them up as a garland or create a "Sibling Shrine" photo wall. Bonus points for awkward school pictures and fancy dress disasters.

4. Plan Some Games and Activities

Keep things lively with a few interactive games:

Sibling Trivia – Write down fun or obscure facts about each other and see who knows whom best.

Guess That Baby Photo – Invite your mates or cousins and throw everyone into the mix.

DIY Time Capsule – Write notes to each other, include funny mementos, and agree to open it in five or ten years.

5. Serve Your Favourite Shared Snacks

Dig into the foods you fought over growing up. Did one of you always steal the last biscuit? Set out a table full of your childhood favourites—crisps, sweets, homemade pizza, or Mum's legendary trifle. For drinks, create a mocktail or cocktail that reflects your personalities (or birth order chaos).

6. Take New Photos

Make sure to take a few nice snaps to commemorate the day. Maybe even re-create an old family photo for a laugh—same pose, bigger clothes, more sarcasm.

7. End with a Toast

Raise a glass (or a mug of hot chocolate) and say something nice to each other—even if it’s just “You’re less annoying than you used to be.” A little sentiment goes a long way.

Whether you’re planning something big or just a cosy night in with your brother or sister, the most important part is showing up and having a laugh together. National Siblings Day is a reminder that family doesn’t have to be perfect to be worth celebrating—so embrace the chaos, the inside jokes, and the bond that lasts a lifetime.

Happy Siblings Day!