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100 Happy 21st Birthday Captions and Quotes

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Are you looking for 21st birthday captions, quotes and wishes? You’ve come to the right place! You’ll also find happy 21st birthday images in this collection. We’ve scoured the internet for the best 21st birthday captions including funny 21st birthday captions, 21st birthday Instagram captions, clever birthday captions for your 21st, cute birthday captions for turning 21 years old, 21st birthday captions for yourself, birthday captions for friend on 21st birthday, selfie captions for 21st birthday, birthday quotes for turning 21, 21st birthday puns and messages for 21st birthday.

Whether it’s your own birthday or a friend’s, these captions can help, especially if you’re having trouble finding the right words. You might also like our images for Happy 21st Birthday captions, plus our lists of Funny Birthday Captions, Funny Birthday Wishes and Funny Birthday Quotes.

If you like birthday captions, you might also want to see our lists of the best captions for 16th, 17th, 18th, 19th, 20th, 22nd, 23rd, 24th, 25th, 26th, 27th, 28th, 29th, 30th, 31st, 32nd, 33rd, 34th, 35th, 36th, 37th, 38th, 39th, 40th and 50th birthdays.

Jump ahead to the category you like best or scroll through to find your favorite 21st birthday captions.

Happy 21st Birthday Captions

Check out our favorite 21st birthday captions.

  • Hello, 21.
  • Be good to me, 21.
  • Cheers and beers to 21 years.
  • Achievement unlocked: let’s drink! #21
  • 21 – time to make some pour decisions.
Red candles with 21st birthday captions
  • So this is where aging ends, right? #Forever21
  • So this is 21.
  • Level up. #21
  • Chapter 21, Page 1.
  • Experience level: 21.
  • My day, my way. #21
  • Season 21, Episode 1.
  • Birthday behavior! #21
  • Lap 21 around the sun…
  • And so begins Chapter 21.
  • My birthday, my rules.
People running into ocean with short funny birthday captions
  • Well look who just turned 21…
  • Staying 21 until further notice.
  • POV: You can’t believe I’m 21 now.
  • I’m shawty and it’s my birthday. #21
  • On a scale of 1-10, feeling a solid 21.

Funny 21st Birthday Captions

These funny 21st birthday captions will make you smile. Check out our list of Funny Birthday Captions and Funny Captions for more.

  • Agent of chaos for 21 years.
  • 21? Who cares. I just want cake.
  • 21 years later and I’m still a hot mess.
  • It’s time to rhyme because 21 is for fun!
Cake with funny 21st birthday captions
  • 21! The one night you don’t get carded!
  • Officially 21, but still mentally about five.
  • 21 is so fun I think I’ll repeat it again next year.
  • Made it to 21! I know. I’m as surprised as you are.
  • Leveling up my adulting game. 21 and having fun.
  • Shoutout to my mama who was in labor 21 years ago.
  • Got so distracted by cake, I forgot it was my own birthday. #SoThisIs21
  • Another year older, but I’ll need some extra time for that ‘wiser’ bit. #21
  • Finally 21! It only took me 3 years to realize my adulting game was weak.
  • Tripping on my own feet for 21 years. Here’s to many more years of clumsiness.
  • On this day, 21 years ago, the world became a better place.
Mountain and trees with funny 21st birthday captions
  • Be careful what you wish for… My parents wished for me 21 years ago and look where that ended up.
  • Been pre-gaming 20 years for this moment.
  • Today is not for whining, it’s for wining!
  • After today, I’m celebrating my birthday in dog years.
  • I don’t care how old I’m turning, so long as there’s cake.
  • Today is the day! You can finally “hit me with your best shot.”

21st Birthday Instagram Captions

Here are some of our favorite 21st birthday Instagram captions. Choose the best 21st birthday captions for Instagram below.

  • 21: Wild and free.
  • Ringing in 21 with the best crew.
  • Age 21 but forever the baby of the group.
  • Only 21, but forever the mom of the group.
  • Grateful to have found my people by Age 21.
  • Excited for Chapter 21 with this crew on my side.
  • Turning 21 with the best friends anyone could ask for. #grateful
cake with 21st birthday instagram captions
  • 21 is looking pretty good with this crew by my side.
  • Feeling unstoppable at 21 with this crew by my side.
  • Wouldn’t want to turn 21 with anyone else by my side.
  • Thankful to be ringing in 21with the best people I know.
  • Cheers to good friends, good vibes, and another 21 years.
  • Birthday wish? Already come true with this crew on my side. #21
  • Can’t wait to see what 21 will bring with these beauties by my side.
  • I hope my birthday cake is as yummy as me.
People on beach with funny happy birthday captions
  • Start of Season 21 with the best co-stars I could have ever asked for.
  • Don’t wanna be sappy so… let’s just say 21 is already one for the books.
  • Can’t wait to tell our kids one day about how awesome and hot we were at 21.
  • Another lap around the sun with the best people I could have ever asked for. Here’s to 21!
  • Wouldn’t have made it to 21 without these beauties. Here’s to another lap around the sun!
  • Age is just a number, but friends like these are forever. Thank you all for helping me ring in 21.
  • It’s my 21st… I’ll wine if I want to.
  • (Legal) cheers to finally being 21!
  • 21 and legal proceed with caution.
  • Start from the bottom now I am 21.
  • Turning 21 is nothing to wine about.
  • I have mixed drinks about turning 21.
  • These beauties are the only gift I need. #21
  • Chapter 21. Time to make some memories.
Cake pink rose
  • Wouldn’t trade it for the world, I’m 21 now.
  • I’m 21 now but age gives no guarantee on maturity.
  • Yes, I become 21.
  • 21 21 21 21 I feel like 21.
  • It’s no time to be 21.
  • Woke up a little older… but not wiser.
  • Then I was only seventeen, couldn’t wait for twenty-one.
  • Everybody wants to be twenty-one, Full of life and life full of fun.
  • Finally 21 and legally able to do everything I’ve been doing since 16.
  • O.K., you know that what happens at the 21st B-Day, stays at the 21st B-Day.
  • We only got one year to be twenty one, twenty one, twenty one. One more baby, have some fun.
  • 21 is the age of responsibility. Give it a few months and you will be wondering why you were in such a hurry to get here.
  • Achievement unlocked: 21.
  • Keep calm and sweet 21 on.
  • Wow, never been 21 before.
  • 21 looks pretty and good to me.
  • Just like wine, better with time. #21
  • Favorite day of the year. #21
Cake with cute birthday captions for turning 21 years old
  • It took 21 years to get this awesome.
  • Say hello to the world’s latest 21 year old.
  • Another year, another candle on the cake. #21
  • Cheers to another lap around the sun. Hello, 21.
  • At 21 everything is possible and tomorrow looks friendly.
  • You have 21 bottles of beer to drink. I hope you already started.
  • Your 21st Birthday comes along with great responsibility. You’re responsible for not getting too drunk.
  • Twenty-one is a super important milestone birthday event. It means you have less than 80 years to hit 100.
  • Too lit to quit
Ocean and beach with cute short captions
  • As a twenty one year old, you should know whether 21 is a prime number or not. If you don’t know, you might have to ask someone younger, because the rest of the adults can’t remember school.
  • Here for cake, and cake only.
  • Hey Siri, count the candles.
  • I’m just here for the birthday cake.
  • I’m not getting older. I’m getting better.
  • I doubt tequila is the answer, but it’s worth a shot.

21st Birthday Captions for Yourself

These 21st birthday captions for yourself will make your day. Find your favorite happy 21st birthday to me captions now!

  • Life’s too short to not celebrate every chance you get! Happy 21st Birthday to me!
  • So I’m looking for someone to do my taxes for me this year. Happy 21st Birthday to Me!
  • I wish myself a happy 21st birthday since I am the definition of awesomeness. Self-love!
  • I want to thank everyone for my special 21st birthday, come and join me as I celebrate it.
  • Cheers to the one day of our lives, when we actually celebrate getting old. Happy 21st Birthday to me.
  • Who wants to see my ID?
  • I’ll enjoy the best of today and laugh like never before because it’s my 21st Birthday.
Chocolate cake
  • I can’t keep calm, it’s my birthday.
  • Today is a great day cause it’s my birthday!
  • It’s my birthday, so I’m celebrating everything.
  • Glory is to God I am plus one today. It’s just 20+1.
  • The only things getting LIT today are the candles on my cake!
  • Hip hip hip, hurray! It’s that special day of the year once again.
  • I’m grateful for life and for growth. I wish myself a happy birthday.
  • Birthdays are good for me. The more I have, the longer I live. lol.
  • Heaven has been really good to me by adding another year to my age.
  • The thing is I love birthday celebrations, but only when they’re mine.
  • Of course, I don’t know how to act my age. I’ve never been this age before!
  • Happy Birthday to the smartest person in this world, Happy Birthday to Me!
  • Today is that day when I cried and my mother Smiled. Happy Birthday Mother’s lovely child.
  • 21? Bring it on.
  • Make a wish. #21
  • Getting badder with age. #21
  • Time to see what 21 is all about.
  • Another year, another selfie. #21
  • I think 21 looks good on me.
Person taking selfie with selfie captions for 21st birthday
  • Celebrating another level up. #21
  • Always been a savage, now I’m 21.
  • Only took 21 years to get this cute.
  • 21. Serving cake, and serving looks.
  • Aging and raging. #21
  • Growing and glowing. #21
  • Me, myself and I.
Person taking selfie with short funny captions for selfies
  • Wishing for you this year. #21
  • That birthday glow. #Feeling21
  • Bday wish for the bday bish? #21
  • Here’s to another 365 days of being fabulous.
  • Card me, I dare you.
  • Born to shine, especially today.
Person talking selfie
  • Waited 662,256,000 for this.
  • You really gonna scroll without wishing me a happy 21st birthday?
  • Birthday mode: the youngest I’ll ever be, and the oldest I’ve ever been. #21

Birthday Quotes for Turning 21

Here are some of the best birthday quotes for turning 21. Find your favorite quotes about turning 21 here, then you might also like our list of Funny Birthday Quotes and Funny Quotes About Getting Older. Enjoy these Happy 21st Birthday quotes for Instagram.

  1. “And he said, ‘It’s supposed to be fun, turning 21.’” — Taylor Swift, “All Too Well (10-Minute Version) (Taylor’s Version)”

2. “The older you get the better you get, unless you are a banana.” — Betty White

3. “My life is better with every year of living it.” — Rachel Maddow

4. “The best birthdays of all are those that haven’t arrived yet.” — Robert Orben

5. “Turned my birthday into a lifestyle.” — Drake, “Pop Style”

6. “All the world is a birthday cake, so take a piece, but not too much.” — George Harrison

7. “There is still no cure for the common birthday.” — John Glenn

8. “Why is a birthday cake the only food you can blow on and spit on and everybody rushes to get a piece?” — Bobby Kelton

9. “Birthdays are nature’s way of telling us to eat more cake.” — Edward Morykwas

Birthday cake with quotes for 40th birthday cake by Morykwas

10. “Put candles in a cake, it’s a birthday cake. Put candles in a pie, and somebody’s drunk in the kitchen.” — Jim Gaffigan

11. “Your birthday is the beginning of your own personal new year. Your first birthday was a beginning, and each new birthday is a chance to begin again, to start over, to take a new grip on life.” — Wilfred Peterson

12. “Birthdays are good for you. Statistics show that the people who have the most live the longest.” — Larry Lorenzoni

13. “I intend to live forever. So far, so good.” — Steven Wright

14. “Older? Definitely. Wiser? …mmm debatable. Happy Birthday!”

15. “A birthday is like a new year and my wish for you, is a great year full of happiness and sunshine!” — Catherine Pulsifer

16. “The way I see it, you should live every day like it’s your birthday.” — Paris Hilton

17. “You are only young once, but you can stay immature indefinitely.” — Ogden Nash

18. “Don’t just count your years, make your years count.” — George Meredith

19. “Count your age by friends, not years. Count your life by smiles, not tears.”  —  John Lennon

20. “You don’t get older, you get better.” — Shirley Bassey

Cake with candles with birthday quotes for turning 21

21. “You were born an original. Don’t die a copy.” — John Mason

22. “When a man is tired of life on his 21st birthday it indicates that he is rather tired of something in himself.” — F. Scott Fitzgerald

23. “At 16, you can drive. At 21, you can have a cold one. Do both at the same time and your present might not have a future.” — Greg Tamblyn

21st Birthday Puns

These 21st birthday puns will make you chuckle.

  • Go ahead, cake my day.
  • Yeti or not, it’s your 21st birthday.
  • Time to par-tea!
  • Nothing holds a candle to you.
  • You take the cake.
  • Have a grate 21st birthday. Hope that’s not too cheesy.
Cake with 21st birthday puns
  • Some only dream of birthday cake, and others bake it happen.
  • Your 21st birthday cake brings all the boys to the yard.
  • Happy 21st birthday. You’re one in a melon.
  • Sending you s’more birthday wishes.
  • Dim-sum body say it’s your 21st birthday?
  • Let’s taco ‘bout your 21st birthday.
  • Oh ship, it’s your 21st!
  • Celebrating your 21st  is a piece of cake.
  • I got you popcorn for your 21st birthday because you’re poppin.
  • Here’s to a soup-er 21st birthday!
  • So you’re spaghetting older.
  • You’re 21 years old, but I do not carrot all.
  • 21 years of sass.
  • On this day, a queen was born.

And there you have it! Hopefully, we were able to help you find the ideal 21st birthday Instagram caption you were looking for.

Please let us know in the comments section below if you have a favorite birthday caption for your 21st we missed.

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Red candles

About the Author

Laynni Locke

Laynni Locke

Laynni has been sharing her travel adventures and day-to-day life on Routinely Nomadic social media for over 15 years and appreciates the importance of finding the perfect quote or caption to showcase those experiences. Putting her extensive writing and education background to good use, Laynni has become passionate about researching and curating comprehensive lists of all the best quotes and captions for every occasion.

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