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Best 21st Birthday Captions for 2021

Are you looking for 21st birthday captions? 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.

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

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.

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.

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.

Turning 21 with the best friends anyone could ask for. #grateful

cake with 21st birthday instagram captions

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.

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.

Clever Birthday Captions for Your 21st

Take a look at these clever birthday captions for your 21st birthday. If you like these, you should head over to our Clever Captions for more.

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.

Cute Birthday Captions for Turning 21 Years Old

Enjoy these cute birthday captions for turning 21 years old. You might also like our full list of Cute Captions.

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.

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.

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.

Birthday Captions for Friend on 21st Birthday

Choose the best birthday captions for friend on 21st birthday from the list below. You might like our lists of Funny Friendship Quotes, Best Friend Quotes and True Friendship Quotes.

Say hello to my new favorite 21 year old.

21 and you’ve never looked better. Here’s to you!

Thanks for letting me bother you for the past 21 years.

Who knew 21 could look this good? Aging looks good on you.

Helping this one ring in 21. Cheers to another lap around the sun!

21 years of being your favorite pain in the butt. Here’s to 21 more.

Can’t believe you’re 21. Here’s to another year of amazing memories.

Cupcake with birthday captions for friend on 21st birthday

How good is 21? It’s only the best age of all time. Enjoy your birthday, friend!

Happy 21st. You’re legal, but you never stopped being our baby. We’ll always love you.

Making memories with this crew… 21 is already off to the best start I could have ever asked for.

Turning 21 with the best support system in the world. Thanks for making the past 21 years so unforgettable!

Celebrate the sweetest person you know, by being the sweetest version of yourself. Happy 21st Birthday to my sweet friend!

We’ve come full circle; you started life as my little sidekick, and now you’re all grown up. I love you to the moon and back. Happy 21st birthday, sweetie.

Wishing you many many more, 21 years can’t even come close to measuring up to all the great memories we’ve already shared. Happy Birthday!

Happy 21st to my sweet friend. I’m so proud of you for all the cool things you’ve accomplished in life so far, and I can’t wait to see what the next year has in store!

Adulting is more fun when you have friends who know all the good uses of a potato masher. You wouldn’t believe some of the things this thing can do! Happy 21st birthday to you, my dear friend.

21 has never looked this good. Happy birthday

Some things really do get better with age… Happy 21st birthday!

What goes up must come down—in this case the best 21st I could ask for. Cheers to your crazy, fun, quirky years!

Today you’re 21, but now that you’re a year older, you can finally wear cool adult underwear. Here’s to another year of awkward stage. Happy birthday!

Selfie Captions for 21st Birthday

You’ll love these selfie captions for 21st birthday. Check out our list of Cute Selfie Captions for more.

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

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.

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.

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

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

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

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

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

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

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

“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

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

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

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

Cupcake with short funny birthday wishes

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

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

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

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

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

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

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

Cake with candles with birthday quotes for turning 21

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

“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

“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.

Messages for 21st Birthday

You’ll love these meaningful messages for 21st birthday. Head to our list of Funny Birthday Wishes for more.

Congrats. Now you can legally do everything you’ve been doing since 15.

Don’t chase anything except drinks and dreams.

Yay! You can finally use your own ID! Happy 21st.

Happy 21st Anniversary of your escape from the womb.

I’m glad you don’t have to beg strangers to buy you beer anymore. Happy Birthday!

I’m glad you were the strongest sperm.

Cheers and Beers to 21 Years!

Sweet 21 will be filled with fun!

Cake with messages for 21st birthday

Congrats on not having to use your fake I.D. anymore.

Here’s to a night you’ll never remember! Happy 21st!

Just because you only turn 21 once doesn’t mean you have to remember it.

Tonight begins the first of many, many poor decisions.

Your youth has officially expired. Happy 21st Birthday.

Enjoy the last useful birthday. Happy 21st!

May the odds of remembering your 21st birthday be ever in your favor.

Today we say goodbye to a true friend – the fake I.D.

Happy 21st Birthday! We honestly can’t believe you made it this long.

For your 21st birthday, my present is not taking any pictures of you tonight.

Finally 21 – now go out there and make some regrettable decisions.

Welcome to the roaring 20s!

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

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