21st Birthday Captions For Instagram (2022) Cute

3600+ 21st Birthday Captions For Instagram (2022) Cute

November 18, 2022
Est. Reading: 23 mins

Nowadays, many people are using Instagram for sharing photos and videos. If you are one of them and want to share a photo on your Instagram profile with a caption, then there is no need to type the text in it. Just add any cool caption from here and post it. Our today's blog is all about 21st birthday captions for Instagram.

If you want to make your photo look more attractive on your special day like your 21st birthday, then you should use a cool caption for it. If it's your boyfriend's or girlfriend's birthday, you can use a romantic birthday caption for the photo.

We have compiled a list of the best 21st birthday Instagram captions in which you will find all types of captions like funny, cool, romantic, and more.

Also Useful: Birthday Captions For Instagram (2022)

Good 21st Birthday Captions For Instagram (2022)

Using captions is a great way to make your photos more interesting. A good caption will not only attract more people to your photo but also show off your personality. So, if you are looking for some good 21st birthday captions for Instagram, then this is the right place for you.

Good 21st Birthday Captions For Instagram (2022)

In this section, we have compiled a list of the best 21st birthday captions for Instagram. You can use these captions to make your photos more interesting and attractive.

  • Don't let go of the people who always hold you up.
  • Chase your dreams, be crazy, laugh too much and never regret anything that made you smile.
  • You can walk away knowing you gave it all you got.
  • A day without laughter is a day wasted.
  • There's no place I'd rather be, and there's nothing I would rather do. Happy birthday to me!
  • You only live once but if you do it right, once is enough.
  • Don't wish me a happy birthday; I'm not dying today!
  • Throw on some shades and kiss the sky. It's my birthday and I'll cry if I want to!
  • Every day is a chance for me to show how grateful I am for my life. Happy birthday!
  • If today was your last day and tomorrow was too late, what would you do? Would you change anything? Why? No.
  • Life's too short to spend time with people who suck the happiness out of you.
  • The best things in life are unseen, that is why we close our eyes when we kiss and cry when people leave us.
  • You make me feel like this is what 21 and awesome looks like.
  • I'm lookin' for someone to share in my celebration tonight!
  • Can't believe I get to do whatever I want, whenever I want! Today's gonna be epic.
  • Here comes the birthday girl!
  • This is the beginning of something new. I can feel it in my bones!
  • I'm a woman now, you better treat me like it!
  • This is the year that I've been waiting for. It's going to be epic.
  • It may be my birthday but we're celebrating together tonight right?
  • I get this feeling like I'm on top of the world.
  • I can do whatever I want today! And let me tell you, what I want is some fun.
  • Oh yeah, it's my birthday and it feels so good;)
  • Happy birthday to me!
  • Time is flying by now. And I'm loving every second of it.
  • It's my 21st and it feels like anything can happen today;)
  • I feel really good about life today. Like anything is possible!
  • It's my birthday and I ain't even mad about it;)
  • I'm celebrating with the people that mean the most to me today! Love you all so much!!
  • Love is the best feeling in this world, especially when you get to do it all over again on your birthday!
  • I don't want to be dull today. I'm gonna get wild!
  • Oh my goodness, it's finally here;)
  • It's your birthday and you can dance if you want to!

Also Related: 20th Birthday Captions For Instagram (2022)

Best 21st Birthday Captions For Instagram (2022)

This is the best collection of best 21st birthday captions for Instagram. Try these captions and you will definitely get lots of likes from your friends, family members & other people on Instagram. These birthday captions for Insta are very simple to use in a photo or video.

Best 21st Birthday Captions For Instagram (2022)

You can also add birthday captions to your Facebook profile and timeline too. Just copy & paste these captions and use them on your Facebook too.

  • Please don’t stick a bottle in my diary.
  • I have made it to twenty-one! I guess that means I can drink legally now?
  • It's been 21 years since I've been on this earth, and every year just gets better. Cheers to another year of fun times!
  • Happy birthday from your twentieth year to your twenty-first year!
  • I know I'm not 21 yet, but can we pretend for tonight?
  • If life gives you lemons... make margaritas.
  • My birthday wish is that everyone in the world gets everything they want and will never have an unfulfilled dream. And then my next birthday wish is to have a day off.
  • I didn't just turn 21, I turned 20 years sober! Cheers to sobriety and another year of fun times!
  • The best feeling is when you go out with your friends on the weekend & realize that it's Monday morning & don't remember anything from Saturday night because you were too busy having fun.
  • I'm pretty sure I just turned 21, but it feels like I've been an adult for longer than that... guess I should stop partying so much?
  • Can you teach me how to be 21 again, please?!
  • Here's To Never Growing Up! This year is gonna rock because everything in my life does.
  • It's my birthday, so everyone has to do whatever I want!
  • Happy 21st Birthday! You're one year closer to becoming a real adult & it couldn't happen soon enough 🙂
  • Cheers!! This is the best day ever because it's MY BIRTHDAY!!!
  • I don't feel old. I still feel like a young kid at heart with an old soul!
  • Life's better when you're laughing & sipping on something sweet 😉 cheers to another year full of fun times!
  • I'm not 21 until next week, but I can pretend for tonight? Let's party!!!
  • This is it. This is my year to finally become an adult!
  • I'm turning 21 & I'm excited for all the things that are about to come into my life. All of it will be amazing 🙂
  • This birthday can't wait, I need cake now!!! 🙂 
  • Can you believe it? It's my 21st birthday today!!! Woohoo!!!!! 🙂
  • I dream out loud, I’m sassy and free.
  • Loving my birthday is what I do best!
  • Time to party with me on my 21st birthday!
  • Happy Birthday to the queen of everything good in this world. It's your day so make it count girl!!! Enjoy every moment
  • Happy 21st Birthday! May the next year be filled with blessings and all that makes you smile
  • Life is better when I'm drunk on my 21st birthday! Everyone should try it!
  • It's your birthday, you can party if you want to.

Also Check: 19th Birthday Captions For Instagram (2022)

Funny 21st Birthday Captions For Instagram (2022)

Funny 21st birthday captions for Instagram that will make your friends laugh. These captions are perfect for fun-loving people who love to spend time with their family & friends on social media platforms like Instagram.

Funny 21st Birthday Captions For Instagram (2022)

Here we have gathered some funny 21st birthday captions for Instagram for you. These are really cool captions for Instagram that will make your friends laugh hard.

  • I’m not old, I just have more life experience.
  • I can legally get drunk now! Time to celebrate me turning 21 with some tequila shots!
  • Even bad decisions are better when you make them at twenty one.
  • Every year I get older, but they stay the same age.
  • This is me trying to look like an adult for my 21st birthday.
  • I finally made it! It took almost 20 years, but here we are... legal and free at last!! Hooray!!!
  • Now that you're of drinking age, here's a list of things you should probably know.
  • I don't look 21, but then again I never did.
  • 21 years young!
  • I'm not old, I'm vintage.
  • Today is my official day of birth and today I take a step into adulthood.
  • The best things in life may be expensive but the experiences are priceless.
  • It's hard to wait when you're so excited about something you've been waiting forever!
  • I don't think I've ever been so excited in my life!
  • I'm finally legal and I got the best present ever.
  • My 21st birthday is going to be epic, it will go down in history as one of the greatest days of all time.
  • Tonight's gonna be legendary (:
  • 21 going on forever.
  • The best 21st gift ever! Thank you for making my birthday a special one, I love you all so much! Have the greatest day ever and enjoy your night tonight because it's mine!!! Xoxo
  • Don't let me lose my keys or else.......I'm gonna be really mad !! Hahahaha
  • I can't believe I'm finally 21 today! Time to celebrate me turning 21 with some tequila shots!!
  • Even bad decisions are better when you make them at twenty-one.
  • It's my birthday today...so let the party begin!!!!! Hahahahaha !!
  • You know you're an adult when...
  • It's my birthday and I'll do what I want!
  • Forty is the new thirty.
  • I'm officially legal ! Yay :)!!! -Happy 21st Birthday!!
  • Today is my birthday and I'm going to celebrate like a rockstar.
  • On your 21st Birthday, you can do anything so go for it!! Enjoy every minute of the celebration!!!

Check More: 18th Birthday Captions For Instagram (2022)

21st Birthday Instagram Captions For Brother (2022)

Get some of the 21st birthday captions for Insta from here and make your brother's day more special with these captions. These are perfect for brothers who want to wish their siblings on social media platforms like Instagram, Facebook, etc.

21st Birthday Instagram Captions For Brother (2022)

Try out this cool collection of the best 21st birthday captions for your brother:

  • I’m sure your whole life is going to be full of happiness because you are a very special person. Keep smiling always!
  • Your birthday means the world to me, dear brother and I wish that with every passing year, you become more successful than ever before in achieving all your goals. Happy birthday!
  • You have inspired me to be a better person, my brother. I’m proud of you for all that you have achieved in your life so far and wish that this year is no less awesome than the previous years!
  • I know there are hundreds of reasons to envy me but at the same time, I don’t want anyone else apart from you because you are the best brother in this whole world.
  • You’re not only my dear brother but also my biggest inspiration and I wish that your life is full of happiness, joy, health, wealth and prosperity! Happy birthday to you!
  • I know there are people out there who have achieved more than what you did at 21 but I like to believe that you still have a long way ahead of you and there is no one who will stop your progress!
  • I’m sure the coming years are going to be even more awesome for both of us because we share such an amazing bond. Happy birthday, brother! Stay blessed always.
  • The beautiful bond between us is what makes me feel lucky to be your brother. Let this year bring more happiness than the previous years!
  • I know that you are destined for success and I wish that nothing but the best comes your way every year. Happy birthday, bro!
  • Even though we haven’t seen each other much in recent times, there is no one who can ever take your place because after all these years of being together; I know you still have a place in my heart.
  • I’m glad that I can call you mine because if there is anyone who understands me the best, it has to be only you! Happy birthday, bro! Stay blessed always.
  • My biggest goal of life is to support and inspire others just like how an amazing brother like you has always supported and inspired me. Happy birthday, dear brother!
  • I hope that your dreams come true because I know they will be achieved in no time with the right attitude of mind. Keep believing in yourself, broski! Wishing you a very happy birthday once again! Stay blessed always.
  • The world is full of opportunities and possibilities that are going to open the doors of your success. Make sure you don’t miss a single one!
  • I'm glad I didn't have to wait 21 years to finally meet you. Happy birthday!
  • The world may be a scary place but never give up, because life is full of surprises and it's waiting for opportunity... all we need is patience. Have a happy 21st birthday!
  • I've been counting down the days until your 21st birthday. I hope you enjoy being an adult!
  • This is the day a very special person turns 21 and gets to experience all of life's pleasures without parental consent. Enjoy your newfound freedom but please drink responsibly. Happy Birthday!
  • Hoping this year brings joy beyond measure, peace in every step and so much love for you to share. Happy 21st birthday!
  • To a wonderful human being who brings happiness, smiles and laughter into my life everyday - I wish you the very best of everything on your 21st birthday! Love from your favorite cousin xoxo
  • I hope this year is as bright as all those candles on your cake. Have a happy 21st birthday!
  • I can't believe you're actually 21 today. You make it look so good, I wish I was three years younger too. Happy 21st Birthday!
  • Happy Birthday to someone who never ceases to amaze me and inspire me with their grace and strength... Have a wonderful day full of love, laughter, and fun!
  • May your life be full of beautiful blessings, a heart that is always open to the world around you, and every good thing this universe has in store. Happy 21st Birthday!!!
  • Happy birthday my dear brother - may the sun shine upon you from all corners of the earth on your special day! I hope it brings you much warmth, happiness and joy.
  • A lot of people will come into your life and may some leave but the memories you have with them would last forever. Happy 21st birthday!
  • May all your dreams become a reality this year – because we both know they deserve to be! Have an incredible day - happy 21st birthday
  • I hope this year brings joy beyond measure, peace in every step and so much love for you to share. Happy 21st birthday!
  • Happy Birthday to the most amazing person I have ever met... enjoy your big day my bestie
  • For everything that is yet to come may all of your dreams be realized. Happy 21st birthday!
  • Happy Birthday to someone who never ceases to amaze me and inspire me with their grace and strength... Have a wonderful day full of love, laughter, and fun!
  • Have an amazing time celebrating this special milestone in your life. Happy 21st Birthday!! May you have all the happiness today brings !! Enjoy your celebration.

Also Useful: 17th Birthday Captions For Instagram (2022)

21st Birthday Instagram Captions For Best Friend (2022)

Choose a cool birthday caption for your best friend from this list of 21st birthday captions for best friend and make him/her feel more special on their big day.

21st Birthday Instagram Captions For Best Friend (2022)

These are the most unique & amazing captions you can use in photos posted by friends to wish them on Instagram.

  • Happy birthday to a friend who knows how to have a good time, and also knows when it’s time to work hard.
  • Another year older… which means another year wiser! Happy birthday again my dear friend!!
  • There is something very special about turning 21 because you can get drunk for the first time legally in America. And that’s a glorious feeling.
  • You have been my best friend for over 21 years now… Isn’t it about time you get paid? Happy birthday sweetie!
  • The only thing I know how to do well is to make mistakes, and the only thing I love more than making them is learning from them. So happy birthday to my best friend who taught me everything I know.
  • Happy 21st Birthday! Thank you for making every day of the past 21 years so amazing. Cheers to another great year together!!
  • I just want to wish your special day is as special as you are. You deserve it all, happy birthday dear!!!
  • Here’s to another year of laughter, good times and no regrets. And that was just the last twenty-one years!
  • Here is wishing you a 21st birthday filled with happiness, joy & love…and an even better 22nd birthday!!! Cheers!!
  • I hope this new chapter in life brings you as much excitement as the last 21 years have brought.
  • Happy birthday to one of those rare people who can make you laugh until your stomach hurts and then apologize for it! I’m glad we share this friendship that will never end. Cheers to another year together!!
  • You are a beautiful person inside out, may every day of your life be as special and beautiful as you are. Happy birthday!
  • I hope your dreams take you to the highest heights, your worries never exceed your smiles, and that all of life’s adventures bring you much success and happiness. Happy birthday!!
  • Happy Birthday to my best friend, may all your dreams come true, especially the one where we finally get that house with a pool! Cheers!
  • I’m celebrating the fact that my best friend, who is also turning 21 today, has finally become an adult.
  • Thanks for being my friend, here is to a great 21st birthday. May you have many more days filled with joy and happiness as you move forward in this new stage of life.
  • 21 years old! Congratulations on your big day! You are now free from the chains that bound us at 18 so go out there and enjoy all the amazing things that life has to offer. May your 21st year be filled with joy and happiness!
  • Don’t let the number 21 scare you, go ahead and enjoy this day as it happens only once in a lifetime then celebrate some more because who knows when next will happen? Happy birthday my friend!
  • We all know how exciting 21 can be, I wish you all the joy and happiness this new milestone is promising us. Wishing my friend a wonderful 21st birthday!
  • 21 years old today! May your day bring nothing but joy and great memories to cherish. You are so loved my dear, happy birthday.
  • Today marks another year of life for you as you celebrate your 21st birthday. May you continue to live a life full of joy and happiness as this new age comes into play, happy birthday!
  • Today is the day that marks another great year for my friend’s journey on earth so let us all toast to his 21st milestone. Happy Birthday! Have fun my dear friend – and celebrate your big day to the fullest.
  • No more restrictions, you are now welcome to 21! Yay! Have fun and celebrate as you plan to intentionally make the best of your new age. Happy birthday to my friend on his special day!
  • Here is a toast for one of my closest friends who just turned 21 years old today! May you have many more days filled with joy and happiness as you move forward in this new stage of life.
  • Cheers to a glorious 21st birthday, my best friend! You are amazing and I can only wish you all the amazing goodness that life has to offer – may your day be filled with fun and laughter after another year of success!

Also Related: 16th Birthday Captions For Instagram (2022)

21st Birthday Instagram Captions For Selfies (2022)

Birthday selfies are always a must on your big day. And what better way to show off your birthday glow than with a killer Instagram caption? We've got you covered with the best 21st birthday Instagram captions for selfies, so you can get back to celebrating.

21st Birthday Instagram Captions For Selfies (2022)

These are the best 21st birthday Instagram captions for your selfie and photo posts:

  • Can’t wait for the future, let me live in today.
  • I feel 21!
  • The best is yet to come.
  • Here’s to another year of being awesome! Cheers to 21 years old.
  • May this year be even better than the last. Cheers to being 21!
  • May all your wildest dreams come true in the next 365 days. Cheers to 21 years old!
  • 21 is nothing but a number, what happens now determines who I am forever.
  • The older you get, the wiser life gets. Wishing you the best of everything on your 21st birthday!
  • I’m officially legal. Cheers to a year older and wiser!
  • If God is willing, then I can fly. Happy Birthday my dear friend, may this day be more blessed than all the rest that came before it!
  • I’m so over being a kid, I’m 21 now.
  • Cheers to the beginning of a new chapter in my life! Happy Birthday to me.
  • Wait till they get a load of me on this brand new book cover that is called LIFE. Wishing myself a wonderful birthday today and may all my dreams come true!
  • I know I’m not 21 yet, but you can still party with me.
  • I may be young, but the liquor doesn't lie.
  • Happy 21st birthday to me!
  • I’m living my best life.
  • Life isn't about age, it's about the party in your soul. -Cuz I'm young and unafraid of dying tonight .:)
  • I don’t need to get drunk, I'm already lit.
  • It doesn't matter how old you are if you look good enough for the party!
  • This 21st birthday is going down in history.
  • Today's my day and it's time for me to celebrate!!
  • Drink like a grown-up when you're not grown yet.
  • No age limit on fun!!
  • 21, 21, 21st birthday!
  • I'm making my own rules today.
  • It's a celebration of the beginning of something new! Cheers to that. -This is only gonna happen once...so make it count .:)
  • We're going hard or we don't go at all!
  • Tonight's my night and I'm making it last.
  • I'm not 21 yet, but that doesn't mean I can't celebrate.
  • Don’t wait for your ship to come in; swim out and meet it!
  • I don’t want to be young forever because there's so much I need to learn. But today is all about celebrating me and making my birthday as memorable as possible!
  • I'm already drunk on life, so 21 is nothing for me!
  • 21 years of living like I’m still a kid!

Also Check: Cute 15th Birthday Captions For Instagram (2022)

21st Birthday Instagram Captions For Boyfriend (2022)

Is your boyfriend's birthday coming up and you're looking for the perfect Instagram caption? We've got you covered with the best 21st birthday Instagram captions for your boyfriend.

21st Birthday Instagram Captions For Boyfriend (2022)

From sweet and sentimental, to funny and cheeky, we have a 21st birthday caption for every type of relationship.

  • I am sending you all my wishes, hugs, and kisses. I hope your birthday is amazing in every way possible.
  • Special occasions are made to celebrate life with the people who matter most in it. Let's make this one even better by adding another year to our journey together! Happy Birthday Boyfriend.
  • Happy birthday to the best boyfriend in the world. I would have sent you a thousand kisses but I ran out of stamps.
  • I am sending these birthday wishes to the guy who makes everything better. You are my favorite, and today is your day!
  • Happy birthday to my boyfriend with whom I shared all the memories of our lives together.
  • You make me feel special every day. And I have had the best 21 years of my life with you! Happy birthday to a boyfriend who has outdone himself every day.
  • As each year passes by, our bond gets stronger and deeper than ever before. So here's wishing you all the happiness in this world on your special day!
  • Today is an important day for you, and I'm sending my love out to the guy who means so much to me.
  • I am always thankful that we met each other in high school and fell in love at first sight! Happy birthday, sweetheart. You deserve all the happiness on your special day today.
  • Every year with you is a blessing. I hope you know that because it's true! Happy birthday, baby.
  • I could not ask for a better boyfriend in my life. You make every day special and joyful; even your birthdays are amazing because you're with me on this journey to celebrate them all year long!
  • You've given me the best 21 years anyone could ask for. You've loved me, cared about me and been there for me every step of the way! Happy birthday to my wonderful boyfriend who deserves all the best things in life.
  • You are my superman, and I am your cute kryptonite. Happy birthday to the man of my dreams who has made me complete by becoming a part-time girlfriend.
  • The best feeling in the world is knowing you have someone on this planet that loves you unconditionally. Because no matter what happens, good or bad, he will always be there for you. Happy birthday to my soul mate, boyfriend.
  • You are the love of my life. You hold a very special place in my heart, and you fill me up with all your cuteness, sweetness, laughter and joy! Happy birthday to my best friend who I want to be by my side forever.
  • Happy Birthday Wishes For Boyfriend: Every time I look at you, your beauty takes my breath away. Your tiny nose gives an extra charm to your face. You are a perfect boyfriend, and I want to celebrate this special day with you.
  • Happy Birthday Wishes For Boyfriend: In my heart, there is a very unique place for you that no one can ever fill in! Let's enjoy today and make it worth celebrating cause we have lots of time ahead to live together happily ever after.
  • You are my first love and I hope you have a happy birthday.
  • Happy 21st, dude! Wishing you all the best on this special day of yours. Cheers to many more years together as friends and then boyfriends that follow after that 🙂
  • You're not just a friend anymore - you're a lifetime companion from now on. May your birthday be fantastic and may you have many years ahead of happiness, success & joy!
  • I don't know where we're heading, but as long as you're there with me, I know it will be great. Happy 21st to my boo.
  • Happy birthday! May your day be filled with laughter, joy and all the happiness in the world.
  • In this world of changes, our friendship has been a constant. Happy birthday to my boyfriend who always remains unchanged in my heart and mind.
  • I am sending you lots of happy wishes for your 21st birthday! I hope it's going to be an amazing day. Cheers!
  • Today is one special day when we can drink to our heart's content wishing you a happy 21st birthday!
  • No matter how many years pass, I will always be here for you. Happy birthday to my boyfriend who truly deserves all the best things in life. May this day bring lots of love and joy your way!
  • You are a great man, and you make me feel like a true woman. Wishing you all the love in the world on your 21st birthday, honey!

Check More: 3rd Birthday Captions For Instagram (2022)

Short 21st Birthday Captions For Instagram (2022)

When it comes to celebrating your birthday, you want to make sure to do it in style! And what better way to show off your birthday than with some amazing Instagram captions? Here are some short 21st birthday captions for Instagram that will make your photos look even better.

Short 21st Birthday Captions For Instagram (2022)
  • Life's about making memories & friends are worth keeping.
  • Best moments come to those who wait.
  • I'm not old, I'm just 21st century grown!
  • Live your life without any regret and don't look back with a smile.
  • Even if you are not 21 anymore, enjoy the party.
  • I'm still one of those people who believes that happy endings exist.
  • It's a milestone moment for you, so have fun and enjoy!
  • I hope I can be as cool as you when I turn 21.
  • You only live once but if you do it right, once is enough. Happy Birthday
  • Ready to let loose and relax.
  • Our love for you will last forever.
  • Life's only getting better from here on out.
  • Happy 21st to me.
  • Shout out to another year of being legal.
  • To 21 and beyond.
  • 21 is the new 20...where you going to party tonight?
  • To another year of feeling young at heart! -I am legal, I am a grown-up now.
  • Cheers to being an adult who can drink legally in all 50 states!
  • 21+21=42. And 42 is the answer to life, universe and everything!
  • You're a year closer to being able to rent a car without having an adult in the back seat.
  • The older you get, the better they get.
  • Remember that time when I was 15 and thought 21 would be sooo old? Yeah...me neither. Happy birthday!
  • May your day be as sweet as you are! Have a great one!
  • I don't know how to be anything but 21...and fabulous!
  • It's not about age, it's all about attitude and where you want to go!
  • 21 years is just one step closer towards death. So party hard and enjoy your youth!

Also Useful: Short Captions For Instagram (2022)

Cute 21st Birthday Captions For Instagram (2022)

Cute means attractive or beautiful in a way that pleases the senses. So, if you are looking for some cute 21st birthday captions for Instagram, then here are some of the best ones that you can use.

Cute 21st Birthday Captions For Instagram (2022)

Using the same old caption for your birthday photos? Time to switch it up and use something new! Check out these cute 21st birthday captions for Instagram that will make your photos look even better.

  • In this 21st year, you have been so very special to me. I hope your birthday will be as wonderful as you are! Happy birthday, sweetheart!
  • Look at us now we’re all grown up and can legally drink – woohoo! Have a great day, sis!
  • I hope you know how much I love and care for you. Have an amazing day with your friends and family! Enjoy every moment of it – especially the cake!! Wishing you all the best on your 21st birthday
  • Wishing you the happiest of birthdays, my dear! I hope this is one day that brings with it all kinds of happiness. Have fun and enjoy every minute!
  • Happy birthday to the most beautiful girl in the world. May you have more love, peace, and joy on your 21st!
  • Happy happy birthday my friend! I hope this year brings all of your dreams come true.
  • I’d say that it is finally time for some fun now that you are officially legal 😛 Happy 21st!
  • Here is one rule for this year: have more fun than any other yr in life!! Happy bday !!!
  • Happy happy birthday my friend! I hope this year brings all of your dreams come true.
  • You are officially legal now, so let’s celebrate! Happy birthday beautiful person :).
  • Another great adventure begins on this day for you today. I hope it is filled with happiness and success always!
  • This one goes out to the 21st bday girl in the house!!! May you have a blast today and forever!
  • 21 years ago was the start of something great - HAPPY 21st BIRTHDAY!
  • Happy 21st birthday to my favorite person in the world! I hope you get everything that your heart desires - and even more.
  • I am so happy for all of your success this year, and always. Have a fantastic day on your special day :).
  • To many more years sweetheart!! Happy bday!!!
  • Blessed is the influence of one true, loving human soul on another.
  • It’s time to go wild on your 21st birthday. Have fun and enjoy your youth. It will be gone before you know it 🙂
  • Happy bday to my fav person ever!!! May you have the best day everrrr
  • Happy 21st birthday. Here’s to all of your dreams coming true this year!
  • Hope u get everything that can make a lovely sweet girl happy today and always. Happy Birthday, sweetheart!
  • Happy birthday to the most amazing person in this world. I hope you get all that your heart desires and more!
  • Happy Birthday, Baby girl!! You’re officially a woman now - woohoo!!! Have fun :).
  • Hope you have an epic 21st, my friend! May it be filled with laughter, adventure & more! Cheers to you.
  • Happy Bday hopes u have fun!!! I'm so proud of everything ur doing keep it up love you lots.
  • I wish that your life is as colorful as the rainbow. May all your dreams come true! Happy birthday...
  • Please make a wish... Have the best day ever!!! Love ya lots!!

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More 21st Birthday Caption Ideas For Instagram (2022)

If you have no idea what to say in your 21st birthday captions for Instagram, check out the following list of ideas.

More 21st Birthday Caption Ideas For Instagram (2022)

Here we have a list of some more amazing and unique 21st birthday caption Ideas for Instagram that will make your posts look awesome.

  • It feels like only yesterday I was wishing you a happy birthday... now look at how old we are!
  • Happy 21st Birthday to my beautiful bestie !!!
  • So this is what it means to be an adult? Good thing I'm not one yet. Cheers for another year of being young with me!
  • It's crazy how much my life has changed since I've known you. Thank God for being a part of it all! Happy 21st birthday to the coolest girl ever!!!
  • A toast to another year full of memories and laughs, with an even brighter future ahead Cheers to YOU on your big day!!
  • Happy Birthday to my best friend who's keeping me young!
  • May your night be full of laughter, love, and everyone you adore most in the world. Here's to another incredible year ahead!! Wishing you all that is good & beautiful on this very special day !!!
  • Happy 21st birthday to the best and most amazing person I know! Hope this year brings you all that your heart desires
  • There's no one else in the world who could make me feel better, or more loved for another year. You are my soulmate & best friend... I love you so much !!!
  • Happy 21st birthday to the coolest person I know! May this year be blessed with everything your heart desires
  • You are turning into a real beauty, and it's time for me to make us some memories. Cheers dear friend. Have an amazing day!
  • Happy Birthday to the most amazing person I know!! May your day be filled with happiness and all you wish for. Cheers, hun !!!
  • You're my best friend who's always been there by my side through everything. Here's to another year of memories we'll never forget
  • My second home, my ride or die, and the person who never ceases to make me smile. Cheers to another amazing year together!
  • This is not a time of celebration for you - it's just one more day that I get to be blessed with your presence in my life.
  • I can't believe how much my life has changed since knowing you. Cheers to another year of memories & laughter, babe.
  • Here's to us! And the best friend that anyone could ask for. Happy 21st birthday !!!
  • May your day be as special and amazing as you are... I love you so much!
  • Can't believe it's been 21 years since we first met. Cheers to another year of the best memories
  • Happy Birthday my beautiful Queen. May your day be filled with happiness & everything good in the world
  • As you blow out your candles, may all of your wishes and dreams come true. May this year be full of blessings and surprises! Happy birthday my friend
  • Cheers to another amazing year together filled with memories we'll never forget.Love you !!!
  • I hope the first day of your twenties is filled with all that you have ever dreamed of, and more. Cheers to YOU on this very special day !!!
  • Happy Birthday my lovely friend! May it be as amazing as you are
  • It's crazy how time flies when you're having fun. Cheers to another year of laughter and friendship
  • I'm so glad we got a chance to grow up together, because now it's going to be fricking awesome forever! Happy 21st birthday !!!
  • You look beautiful on your special day... can't wait for another year of memories and laughs with you.
  • May this new chapter in life be filled with everything good & wonderful... Cheers to another amazing year together!
  • May you feel all the love, peace, and joy your heart can hold on this special day. Happy birthday to my dearest friend !!!

Also Check: Good Captions For Instagram (2022)

Final Words

These were some of the best 21st birthday captions for Instagram you could use. It doesn't matter what kind of caption style works best for your personality or if it's cheesy, just have fun with it! Just remember to keep posting and tagging people so that everyone can see all of your posts about this special day!... Happy Birthday!!!

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