If you’re looking for the perfect way to celebrate your built-in bestie (and occasional frenemy), these sister birthday memes bring the laughs, the sass, and just the right amount of sibling shade.

My sister is my ride or die, as mentioned in this sister meme dump I lovingly dedicated to her. What better way to honor that chaos than with the perfect sister birthday meme?

Happy Birthday Sister Memes to Send to Your Sissy
There’s no bond quite like the one you have with your sister. It’s built on a strong foundation of childhood trauma, sibling rivalry, and passive-aggressive texts. On her special day honoring another trip around the sun, send her one of our hilarious sister birthday memes.

For the sis that loves her champagne (and bonus adores Lucy Ball!)

If your sissy is the Gary to your Spongebob, send her this meme!

Whether you’re the older, younger, or chaotic middle sibling, there’s a happy birthday sister meme here for you.

If you like these sister birthday memes, here are others you might enjoy as well!
Funny Birthday Sister Memes THat Are Just Savage
If you love your sister like I love my sister, you won’t pass up the opportunity to harass her online with these savage but hilarious happy birthday sister memes.

For the sister that is graceful, but also catty.

Nothing throws a little shade like tagging them in a stupid “old picture of you as a baby” meme.

Or harass her with this monkey picture that screams Happy Birthday sis.

Even if she isn’t older than you, but is getting old – this sister birthday meme is seemingly sweet with low-key shade added in.

A little snark for your favorite sis, by mentioning that she’s an old woman will totally go over well in the family group chat. Another thing that the group chat needs is one of our sibling memes.
Big Sister Birthday Memes for the Older Sis
If you’re looking for the perfect way to celebrate your favorite built-in boss, these big sister birthday memes deliver the laughs, the sass, and all the classic older sister energy.

For the older sister who isn’t necessarily wiser than you. The perfect time to let her know is on her birthday, of course!

For the big sister who always hits every decade before you do.

If she gives off big sister energy, this is the meme to text her.
Little Sister Birthday Memes for the Younger Sis
When it comes to celebrating the chaos queen of the family, these little sister birthday memes bring the perfect mix of love, laughs, and just a smidge of sibling shade.

For the little sister with the personality that can be described as “extra.”

Those little sisters sure can be loud, especially when it comes to their special day.

We couldn’t create a collection of sister birthday memes without a Billy Idol and a nod to hey little sister.

For the younger sister on her birthday, who always steals clothes and the spotlight. Crown her birthday queen, but just for the day.
Belated Birthday Sister Memes for When You Forget Her B-Day
Life happens, and then you realize you forgot your sister’s birthday. We got a sister birthday meme for that!

Actually, we have a whole belated birthday meme collection for anytime you miss anyone’s b-day!
Even More Hilarious Memes for Sister’s Birthday
We couldn’t just stop there! Enjoy this extra sister birthday meme dump, to help guarantee you find the perfect meme to celebrate your sis.















Send these Sister Birthday Memes to Your Sista
Whether your sister is the sweet type, the savage type, or somewhere in between, these sister birthday memes are here to help you celebrate her in true sibling style.

After all, no one gets under your skin and into your heart quite like a sister.
If you are also looking for laughs to send your brother, check out our collection of brother birthday memes for even more sibling-approved fun.

Found a meme that feels just right for your sister? Share it on social media and let the birthday laughs keep rolling.