50 Funny Happy Birthday Wishes for Siblings

1. Happy birthday to the guy who taught me how to do everything wrong, but still have fun doing it.

2. Another year older, but not necessarily wiser. Happy birthday, bro!

3. Happy birthday, bro! Don’t worry about getting older; you’re still going to act like a kid.

4. Congratulations on surviving another year with me as your sibling. Happy birthday!

5. Happy birthday! Remember, age is just a number. In your case, a really big one!

6. Happy birthday, bro! You're not old. You're just...vintage.

7. Happy birthday! You may be getting older, but at least I’m not.

8. To my brother, who still owes me a birthday present from last year, happy birthday!

9. Happy birthday, bro! You're aging like fine cheese...getting stinkier with time.

10. You may be my brother, but you’re also my biggest pain in the butt. Happy birthday anyway!

11. Happy birthday, brother! You're the best sibling I could have asked for. Too bad you can't say the same.

12. I think you’re supposed to get wiser with age? But it’s fine, there’s always next year!

13. Happy birthday to the man with the best sibling in the world. You’re welcome!

14. Happy birthday, brother! Just remember, growing up is optional.

15. Happy birthday! Here’s to another year of tolerating each other.

16. When you’re cutting my slice of the cake tonight, remember who lied for you all those times mom and dad asked where you were.

17. Happy birthday! Don't worry about getting older; your secrets are safe with me.

18. Happy birthday, brother! You're not old, just chronologically gifted.

19. Don’t feel old. In my eyes, you’re still my annoying little brother.

20. Happy birthday, bro! At least you're not as old as you will be next year.

21. Happy birthday! Let's celebrate your birthday the way we did when we were kids—eating too much cake and causing chaos.

22. Happy birthday, brother! Don't be sad about being older. Think of it as being a classic.

23. Happy birthday to the guy who always knows how to make me laugh. Even if it’s at his own expense.

24. Happy birthday, bro! You’re so old, you’ve seen dinosaurs in real life.

25. You may not have gotten the brains in the family, but you also didn’t get the looks. Anyway, happy birthday!

1. Happy birthday, sis! May your day be as bright as your Instagram filter choices!

2. Another year older, but still none the wiser. Happy birthday, sister!

3. To the sister who always steals my clothes and then denies it...may your birthday outfit be as mismatched as your excuses!

4. Having a sister is like having a best friend you can’t get rid of. You know whatever you do, they’ll still be there.

5. Cheers to the sister who never fails to embarrass me in public...may your birthday be just as cringe-worthy!

6. You’re officially too old to drop it like it’s hot, so please just sit down like it’s cold. Happy Birthday, sister!

7. Happy Birthday to my sister, who always knows how to push my buttons...usually when I'm already in a bad mood!

8. Happy birthday to my sister, who still hasn't returned that dress I let you borrow. I want it back, by the way.

9. To the sister who always steals the last cookie...may your birthday be filled with crumbs and regret!

10. Happy birthday to my favorite sibling. Yes, I know there are only two of us!

11. Wishing you a birthday full of terrible puns and inside jokes that no one else finds funny...except us, of course!

12. Cheers to my sister, who always knows how to turn a serious conversation into a laughter-filled mess...much like your birthday party!

13. Happy Birthday, sister! May your day be filled with embarrassing childhood stories and lots of cake...just the way you like it!

14. Our parents learned from their mistakes after raising you, but at least you have an awesome sibling!

15. Happy birthday to the girl who thinks she’s the funny one in the family. Now that’s funny.

16. Happy Birthday to my sister, who always has the best comebacks and the loudest laughs...even if they're at my expense!

17. Cheers to the sister who never fails to surprise me...usually with her questionable fashion choices!

18. Cheers to the birthday girl! May your collection of bad decisions and questionable life choices continue to grow. You're an inspiration to us all!

19. Happy birthday, sis! May your day be as full of joy and laughter as our late-night gossip sessions!

20. Happy birthday, sis! Celebrating all the years you've been getting away with things I was punished for. Love you!

21. Happy birthday to my sister, who's always been the funnier and more attractive one. Just kidding - I'm clearly the better looking one.

22. Happy Birthday to my sister, who always has the best dance moves...no matter how embarrassing they may be!

23. Happy birthday to the one who taught me how to swear, how to sneak out of the house, and how to be a boss. You're the best, sis!

24. I’m sorry I called you old. I really thought you knew… Happy Birthday!

25. To my sister, who always manages to make me look good in comparison - Happy Birthday!