A sister is a built-in best friend, a keeper of childhood secrets and sometimes the only person who truly gets your family. Her birthday is the perfect moment to say so.
These short, heart touching birthday wishes for your sister fit in a text, a card or a caption. There are options for big sisters, little sisters and sisters by marriage.
Our editor’s top picks
- Happy birthday to my sister, my first friend and my forever person.
- Life gave me a sister, and my heart gained a best friend.
- No matter how old we get, you’ll always be my favorite partner in crime.
- Thank you for every laugh, every secret and every time you had my back.
- Happy birthday, sis. The world is better because you’re in it.
Short birthday wishes for sister
Quick lines for texts and captions.
- Happy birthday, sis!
- Sisters by chance, friends by choice.
- Love you forever, sister.
- My sister, my sunshine.
- Cheers to my favorite sibling (don’t tell the others).
- Happy birthday to my twin soul.
- Here’s to you, sis!
- Same parents, same weird sense of humor.
Emotional birthday wishes for sister
For the sister who means everything.
- You were my first best friend, and you still are.
- Growing up with you was the best part of my childhood.
- Wherever life takes us, you’ll always be home to me.
- Thank you for holding my hand through every hard season.
- I don’t say it enough: I’m proud to be your sibling.
- You know every chapter of my story and love me anyway.
- Our bond is the kind that time only makes stronger.
- If I could choose any sister in the world, I’d still choose you.
Birthday wishes for a big sister
For the one who went first.
- Happy birthday to the big sister who paved the way.
- You taught me how to be brave by being brave first.
- Thanks for sharing your clothes, your advice and your snacks (mostly).
- You’ll always be the one I look up to.
- Happy birthday to my role model and protector.
- You were my second mom and my first hero.
- Big sister, big heart. Happy birthday!
- I’m still following in your footsteps, and I’m proud to.
Birthday wishes for a little sister
For the baby of the family.
- Happy birthday to my little sister, who isn’t so little anymore.
- I’ll always protect you, even when you don’t need it.
- Watching you grow up has been one of my greatest joys.
- You’re my favorite little shadow. Happy birthday!
- Happy birthday to the sweetest, sassiest little sis.
- You make me proud every single day.
- Little sister, big dreams. Go get them!
- Happy birthday, kiddo. You’ll always be my baby sister.
Funny birthday wishes for sister
For sisters who can take a joke.
- Happy birthday! I’m still Mom’s favorite, but you’re close.
- You’re one year older, but I’ll always be cooler.
- Thanks for keeping all my secrets. Please continue.
- Happy birthday to the sister who still owes me a sweater.
- We share DNA and a lot of embarrassing photos.
- You’re the reason I have trust issues with my closet.
- Happy birthday! Let’s celebrate like we used to, then call Mom.
- I love you more than I love stealing your fries.
Frequently asked questions
How we put this list together: All wishes are original lines by our editors, written for sisters of every age. Written and reviewed by John Moler, editor at Graceful Names. See our editorial policy.
