121 Cool Birthday Captions For Instagram

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Whether it’s your birthday or your best friend’s, you need special birthday Instagram captions to start things off on a happy note. You can share this special occasion with the world and mark it by writing something fun and thoughtful or make your bestie’s day by expressing how much you cherish them!

Whatever the message and whoever the recipient, birthdays feel incomplete without adorable pictures to capture the celebrations. Keep scrolling as we have listed some of the cutest and quirkiest Instagram captions for birthdays in this post.

Instagram Birthday Captions

Are you running out of quirky captions for your social media post? Here are a few cool captions to go with your Instagram post.

  1. Today is a special day because it’s your birthday.
  2. I hope your birthday cake tastes as sweet as you.
  3. Celebrate every chance you get. Remember, life’s too short. Happy birthday to you!
  4. You know what’s common between you and wine? The older, the better. Happy birthday.
  5. It’s important that you make your years count rather than counting your years.
  6. I got you a box full of hugs and kisses and loads of birthday wishes.
  7. Party like it’s your birthday because it is.
  8. Surround yourself with people who get more excited than you on your birthday.
  9. How many candles did you blow today?
  10. You’re still young till your next birthday, enjoy!
  11. Why grow up when you can lie about your age?
  12. Hey, happy (insert your favorite age) birthday.
  13. Someday, you will be old enough to read fairy tales again.
  14. Life’s too short not to celebrate great moments. And what’s a better moment than the day you were born?

21st Birthday Instagram Captions

Wishing your friend on their 21st birthday has never been this easy. Choose from any of the captions below that suit your pictures.

  1. 21 looks pretty good on you.
  2. Hey, you’re 21. Time to be a free bird.
  3. Cheers to all the poor decisions you are about to make this year.
  4. Wooohooo, You’re 21!
  5. Now and ‘Forever 21.’
  6. You started from zero, and now you’re 21.
  7. Happy 21 years of being fabulous.
  8. 21 and legal, proceed carefully.
  9. You turn 21, and there’s nothing to wine about it.
  10. 21 years of sassiness, it keeps getting better.
  11. Did you say 21? Because I heard FUN.
  12. HAPPY 21! You’re one more step closer to 100, just 79 more to go.
  13. 21! You can now get rid of your fake ID.

20th Birthday Instagram Captions

Make your post more memorable with these catchy captions. Wish your BFF happy birthday in style.

  1. Beers to you on your 20th birthday!
  2. Happy 20th! Let the party be-gin.
  3. You look like you’re on cloud wine.
  4. 20 will last a whole year. Make a wish.
  5. You can be 20 as many times as you want. This is just your first.
  6. Don’t forget to shine, you turned 20.
  7. I hope you have a pitcher-perfect birthday!
  8. It’s your birthday, you can do what you like, wear what you like, and drink what you like.
  9. You sparkle like your 20 candles on the cake.
  10. Just so you know, this is what 20 and fabulous looks like.
  11. You know how to be 20 and rock it. So, go for it.
  12. Every day, you shine, but today you rule.
  13. Hey firecracker, you light up my life and crackle me up.

18th Birthday Instagram Captions

It’s finally the year you enter adolescence. Here are some exclusive captions for 18th birthday.

  1. A big shout to my adult friend.
  2. Happy sweet 18!
  3. I hope you stepped into adulthood with a big smile.
  4. Cheers to surviving 18 years of craziness.
  5. This day, 18 years ago, a princess was born.
  6. The most confusing age, 18, an adult yet a teenager.
  7. Hope you live each day and cherish it for the rest of your life.
  8. It’s only once in your life that you turn 18, cherish it!
  9. Happy 18, gorgeous/handsome.
  10. Now you can officially drive me crazy.
  11. 18th time, I thank God for blessing me with you.
  12. 18 makes you look responsible but feel wild.
  13. Today is the beginning of a new chapter. Make it count!
  14. Happy ‘Legally an Adult’ Day!

Funny Birthday Instagram Captions

Put a smile on your loved one’s face with these funny captions!

  1. You have me, what else do you wish for?
  2. Be yourself today. You know I can’t get mad at you on your birthday.
  3. Don’t worry about your age, you will be older next year!
  4. Don’t grow up, it’s a trap.
  5. You can eat your cake and wear it too.
  6. May your worries be as few as my grandma’s teeth and grandpa’s hair.
  7. The more the birthdays, the longer you live!
  8. You cried when you were born, we have cried ever since.
  9. The best thing about this day is CAKE and you, of course.
  10. You didn’t grow old, you just levelled up.
  11. You seem too young to be this old.
  12. You’re so awesome, you were given a certificate when you were born.
  13. It’s better to be a lion for a day than be a sheep for the rest of your life. How’s my tip?
  14. Birthdays are another excuse for eating cake. So, what are we waiting for?

Birthday Instagram Captions For Yourself

Don’t forget to wish yourself on your special day. No one is more excited than you are.

  1. It’s my birthday, I can be as shellfish as I want.
  2. I get more incredible as I grow up.
  3. I don’t need Instagram to remind me of my birthday. Yet I am here.
  4. Candles aren’t the only ones getting LIT today.
  5. They say you get wiser with age. Why did I have to go to school?
  6. Age is just a number, just like my weight.
  7. Enjoying the attention today and only today.
  8. Another year, another wrinkle.
  9. It’s my birthday. I decided to go crazy and drive other people crazy too.
  10. I survived a whole year. That calls for celebration.
  11. Darling, I’m a work of art.
  12. I’m a blend of all the awesome things in this world.
  13. I’m finally old enough to know better yet young enough to get away with it.
  14. I can be as old as you want and as young as I want to be.

Birthday Instagram Captions For Best Friend

Best friends are special, and birthdays are the occasion when you can express your feelings.

  1. I couldn’t have asked for another me, so God gave you to me.
  2. You’re like a sister/brother I never had.
  3. Can you get any crazier than this? Maybe a little more next year.
  4. You’re the moon to my night, the bulb to my light.
  5. You were born to rule, not over me but the entire world.
  6. Can you stop being so awesome? People might notice and steal you from me.
  7. You make me Hap-Hap-Happy every day.
  8. Stay the way you are, you don’t have to act your age.
  9. Dream big as you grow old.
  10. Cake or you? It’s a tough choice to make!
  11. I can’t stop imagining your cute face covered with cake.
  12. I’m so blessed, this beautiful human continues to exist another year.
  13. Congratulations! May your future be as bright as your smile.
  14. You can celebrate with all your friends, but you’re mine for the rest of the year.

Instagram Captions For Boyfriend’s Birthday

Let him know how special he is with a unique and memorable birthday post.

  1. You’re growing handsome every year.
  2. I choose to see you smiling every day.
  3. Hold on to your inner child as you grow up.
  4. Today is a special day, coz it’s your birthday.
  5. When the candles cost more than the cake, it’s time to realize you’re getting old.
  6. Life wouldn’t be the same without you. I wish you many more birthdays filled with joy.
  7. You are more than a friend, more than a companion. You’re my world!
  8. I feel privileged to have spent one more year with you.
  9. You understand me more than I understand myself. Thank you for being so awesome!
  10. Thank you for being the reason for my smile.
  11. You’re my sunshine. Shine brighter than ever!
  12. You taught me how to love, now you teach me how to live.
  13. Let’s celebrate Best Boyfriend Day today!
  14. To the world, you may be a person. But to me, you’re the whole world.

Instagram Captions For Girlfriend’s Birthday

You don’t need an expensive gift to impress her. Your words mean a lot. So, don’t forget to express your love on her special day.

  1. I love you, my crazy, goofy, and sometimes grumpy girlfriend.
  2. Like wine, you are getting better with age.
  3. You’re the reason for my smile and a long credit card bill.
  4. You have expensive taste, look at me.
  5. No matter how old you are, you’re mine. Today, and always!
  6. Do you need to light candles? Coz you’ve already lit my heart on fire.
  7. The best is yet to come. Happy birthday, love!
  8. May we grow old together and never grow apart.
  9. Life would be so different without you in it. Peaceful, yet different.
  10. You dream big, I’m here to make sure your dreams come true.
  11. You crossed another milestone with that killer smile.
  12. I don’t like the stars. They don’t twinkle like your eyes.
  13. I need to see you when I wake up every morning. You’re my sunshine.
  14. I can give you as many jewels as you like, but you’ll still be the most expensive one.
  15. Happy birthday to my everything.

Captions are an integral part of social media posts and have the power to make or break them. When putting up a birthday post, captions are all the more essential to convey your feelings of love and gratitude for this person. If you want your captions to be unique yet relatable, the above list of Instagram captions for birthdays gives you a wide array to choose from. Share lovely pictures of your friend’s, partner’s, or family member’s birthday celebration with these captions to commemorate this joyous occasion.

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Shikha Thakur

Shikha is a writer-turned-associate editor at MomJunction. Her core interest lies in writing articles that guide couples through their courtship to marriage and parenthood. She also specializes in baby names. Being a postgraduate in Human Resources, she likes understanding people and their relationships. This reflects in her relationship articles, where she deals with both the rosy and the grey side... more