Best 21st Birthday Captions for Instagram

Everyone knows the 21st birthday is a very special milestone in life. And how do I know this? Because I turned 21 in January, and all the stories and memes telling me that it’s time to leave home and finally move out of mom’s basement are still fresh in my memory! So here I am, writing articles for you guys, on topics like 21st birthday captions.


21st Birthday Captions


1. Knowing you had the best 21st is a major key to a successful life 😍. Happy 21st birthday!

2. It’s your 21st birthday. Accept gifts and/or drinks from anyone over the age of 21. #birthdaygirl #happybirthday # πŸŽ‚ #21 #yearsold ##

3. What’s your favorite thing about turning 21?

4. Happy 21st Birthday to my beautiful, talented, and ever-so-strong-willed daughter. I love you more than you will ever know πŸ‘‘

5. Seize the day – Chase your dreams. You only get one shot at this life, make it count. These cards always tie a birthday into a bigger narrative about your life, which works for just about any age.

6. Celebrating 21 years by bringing back one of our all-time favorite drinks 🍾 Wishing you many more πŸŽ‚

7. Phew! Make a wish. You’re finally 21 😍

8. You’re officially legal to drink this beer, but you’ve been impressive since the day we met. Celebrate your birthday with a can of Natural Light.

9. It’s my birthday! The best day of the year…only to be topped next year on my 22nd birthday.

10. Happy birthday and welcome to the real world. 21 is so much better than 20, trust me. Love you. #happybirthday

11. 21 is going to be your best year yet. And we have some sweet treats in store just for you πŸŽ‚ #21st #Birthday

12. Maybe I’m too young to feel this old. πŸ’…πŸΌ #21stBirthday

13. In honor of my πŸͺβ˜•οΈπŸŒ³ #21 #21stBirthday

14. Happy 21st birthday to the homie and friend who is always down to have a dance party in an empty house or a full club.

15. Happy 21st 🍾 To my dearest, sweetest daughter, may you enjoy your life to the fullest and continue making a difference in this world. I love you!

16. And three cheers for my twenty-first birthday that’s made it legal for me to marry my hot older husband, who travels with me and supports all of my dreams!

17. Happy 21st! This day marks the start of your next 21 years and every step along the way is a true success. We are so happy to be a part of this milestone with you!

18. Today I’m sharing my age with millions of people on the internet, but it hasn’t changed who I am as a person. #21 #timeflies .

19. Hey 21-year-old me, everything is going to be okay. Don’t stress about not having a job or a place of your own. Everything you need is already inside of you!

20. Remember when you were 8 and all you wanted was to eat birthday cake for dinner? Well, now that’s how we feel every night. We’ve grown up so much since then. It’s been such a long year

21. Celebrate your 21st birthday with family and friends and have a blast. #happybirthday #21stbirthday

22. It’s never been a better time to be 21. 🍾 #HappyBirthday

23. Happy 21st birthday to the most amazing human in my life. Attitude is everything, and you’ve got a good one. Love you forever and ever and ever!

24. Happy Birthday πŸŽ‚ to all of us at Taco Bell.

25. Another year of people asking me how old I am. I’m still too young to driveπŸ§πŸŒ‚β˜€πŸ˜Ž

26. πŸŽ‰ Hard to believe, huh? Who could have known you’d be such a sultry young thing at this age? (That’s 100% true btw) 🀭

27. Remember when I use to be knocking on your door for sugar, now I’m making the rules and telling you how to live #BigGirlRulesMyHeart #HappyBirthday

28. To a year of simple joys, growth, and friendship. Let’s do this. πŸ’• 21 🍾

29. Twenty-one. πŸŽ‰ πŸŽ‚

30. Happy birthday to the queen of the world! – Kanye West.

31. Reach for the stars and all that other spacey stuff, especially on your 21st birthday. May all of your wildest dreams come true this year.

32. Happiest of Birthdays to the weirdest, funniest, most interesting person I know. You make one heck of a 21st birthday.

33. You’re not the same person you were 21 years ago, it’s good though #21yearsold

34. Happy 21st birthday to the woman who started this adventure. Here’s to finding what makes you happy. Thanks for always keeping it real with me. πŸ’•

35. Turning 21 never felt so good. Cheers to a new age! #Turning21

36. Sometimes, I think about turning 21 with my late brother and it still feels unreal. Each year I walk in on my birthday, the same year, and say a silent thank you for time with him.

37. It’s my 21st! That means this is the last time I have to drink free champagne at a birthday party.

38. Today I reached the age of 21.” – Mark Twain

39. Today I’m 21, nothing tastes the same…and I don’t regret a single thing!

40. Happy birthday to my two-year-old because I no longer feel like an adult πŸ˜‚

41. Over 21 years ago, the most wonderful thing happened to me. You were born. Happy 21st birthday.

42. Happy 21st birthday, best friend. Here’s too many more memories and adventures for us to share together. Love ya!

43. All the best to you and yours on 21 years of beautiful memories! Happy Birthday, #21YearOldMe.

44. Turning 21 is one of the best days of your life and is observed by going out with friends for drinks. So, make the night special with these signature drinks and cocktails.

45. Hey 21: we got you covered with fresh ingredients, frothy lattes, and endless possibilities. Cheers to the new year.

46. For this special day, we’re sharing a few tips for the best birthday ever. It’s never too early to start planning your upcoming birthday celebration! πŸŽ‰ 🎁

47. Birthday season is here! β›…βš˜οΈπŸ³οΈβ€πŸŒˆ

48. To all my friends, I’ll see you soon. To my family, I love you. And the world, keep like it’s never been seen before. Happy Birthday to me!

49. Happy birthday to my sweet sister β™₯ You can always make me laugh πŸ‘€, and you’ve always had my back. Have a great year as you celebrate your big 2-1 πŸŽ‚πŸ’• ##

50. I wish you a happy birthday *clink*

51. We’re about to celebrate #21StBirthday, the most important drink of your life. What’s next?”


21st Birthday Captions


52. It’s your birthday. Wear what you want, go where you want. Tonight is all yours. Happy 21st.”

53. What’s a year to the Giant? A day! And many happy returns. #Happy21stBirthday

54. Celebrating my 21st birthday and the beginning of an exciting chapter of life! Here’s to 21 years of happiness, love, and laughter. #21IsComing #HAPPYBIRTHDAY

55. It’s my 21st and I feel like βœŒπŸ‘

56. Happy birthday to the most beautiful, kind-hearted soul I know. The 21st year is already looking better than the last one.

57. 21 years young and counting. Big macs for days and movies on repeat. Can’t wait for the next chapter. 🍻

58. This is probably one of the greatest days of my life. I just turned 21, I’m finally old enough to drink and vote for whoever I want, …

59. When you’re only a kid once and when you drink alcohol you should definitely do it legally. Happy Birthday!

60. 21 years old, going on forever. Love you to infinity and beyond!

61. πŸŽ‰ 3 + 2 + 1 ➑️ 21 πŸŽ‚ We wish you the happiest and healthiest year of your life! #toto21stbirthdays

62. Here’s to another year of adventures with you. Celebrating my 21st birthday as I travel to Italy. Happy birthday to me.

63. Lucky number 21 πŸΎπŸŽ‰ #happy21stbirthday

64. To our youngest 21-year-old, there is so much ahead of you. We hope you’ll never stop pursuing your passions and we wish you the very best in this next chapter. So, go get ’em! πŸŽ‰

65. Celebrating 21 years of being the FANciest place on earth! β™₯️

66. To celebrate the day you made it out of your teens and into adulthood, you deserve to treat yourself to a drink from our Starbucks menu.

67. Best. Day. Ever! I’m official #21 πŸŽ‰ Turn up or tune in… 😌

68. This birthday…let’s make it a good one. Funny 21st Birthday Caption

69. Turning 21 is all about growing up but never losing your youthful spirit. Thank you for the memories. Cheers! πŸ™Œ

70. Happy 21st birthday, sweetheart! You’re the best person I know and I can’t wait to see what the future brings you. Hanging with you tonight so we can celebrate your awesome day.

71. Happy 21st bday to the girl who always says hello to strangers in person, in texts, and in DMS. I hope your day is everything you want it to be!

72. Turning 21 never looked so good. Congrats! #21

73. Just another day celebrating another year of life on this beautiful earth 🌎🍦 #21stBirthday #UneGénérationUltraModelle

74. I just can’t believe you’re turning 21. Every year I expect another year older; every year you make me feel like a little girl again. Happy Birthday ❀️.

75. I’ve got this feeling I’m going to be 21 forever. Happy birthday to me! πŸŽ‚πŸ˜Ž

76. Happiest birthday to a girl who will always be my little sister from another mister. #seventeenmagazine πŸŽ‚

77. This bouquet of flowers is for you. Happy birthday to the most fun, entertaining and loving girl I know. Have an amazing day babe! πŸ’

78. It will take a lot of us turning 21 this year to make up for the lack of birthdays since last year. Happy 21st birthday! We love you and appreciate your hard work and dedication to making the world a better place.

79. Happy 21st birthday, little broβ€”have fun tonight and celebrate. I’ll see you tomorrow. ❀️

80. Wishing you the happiest of birthdays. (But seriously, are you actually going to turn 21? You old.)

81. Happy 21st Birthday to the most stylish man I know…! XXOO Ben ❀️ #beard

82. Here’s to the 21 years we have spent together. We couldn’t be more excited about what’s ahead! Happy birthday,Β  ☺

83. Happy birthday to my best friend, who is 21 and ready to take on the world.

84. Today, I’m turning 21. So this year, I can drink all the boozeβ€” and keep my liver.

85. Happy 21st to the best big brother anyone could ask for. I couldn’t have asked for a better role model in life; thanks for making every day such an adventure. Love you, broski! #21islegendary #

86. Happy 3⃣0⃣th to this girl who only wants your happiness, friends and family, food, and fun. She’s most excited to spend this chapter of her life with you by her side. Happy birthday, sister!

87. Moments like these are never forgottenβ€”you’re officially a young adult. It’s all downhill from here ☺ #21stbirthday

88. β™ͺHBD to me Said no one ever, except now!πŸŽ‰ Happy 21st birthday to πŸ‘‘ baby me πŸ† #taeshineeee

89. Wondering where in the world you’ll be awarded a license to drink on your 21st birthday? 🍷 We say let’s celebrate with a giant cupcake and ice cream pie. 😘

90. It’s my birthday and I look great! Happy 21st to me! Cheers to making the most of your youth, staying fresh, and keeping it super πŸ‘πŸ½

91. Happy 21st birthday, sweetie. We’re so proud of all you have accomplished! To anyone celebrating a 21st birthday, we wish you many more milestones to celebrate in the future. Wreaths Across America

92. We’re not saying we’ve been counting down for you 21 years but, well, we kinda have. Happy Birthday! We love you now and forevermore.

93. Oooooh, 21! Let’s go wild!

94. Hey, remember us? The young people with dreams and aspirations? Glad to be of service. Have a blast tonight. 🎈🍾 #happybirthday

95. May the best year EVER lie ahead. Cheers to you, m’dear! πŸŽ‰πŸ₯‚

96. We used to celebrate these milestone birthdays with candles and cake, but now we do it with one of our limited release Frappuccinos πŸ˜‹ πŸŽ‚

97. Before you turn 21, make sure to fill yourself with fun and adventure because it’s a big deal!

98. Happy 21st Birthday to the most hilarious and generous person I know!

99. Happy 21st birthday to my favorite remote control, aka my sister who changed the channel on me a few too many times…6 years ago. Happy birthday Sis πŸŽ‚πŸ˜‰ #21stbirthday #family #sister

100. The best is yet to come. Happy 21st birthday.

101. Buzzing that I’ll be celebrating my 21st birthday this year! (And thanks for the cake 🍰)

102. It’s time to celebrate! 31 days and a wakeup away from turning 21 years old.

103. I’m feeling nostalgic today because yesterday was my 21st birthday. 😨 It’s funny to think I just started the year of my life yesterday. I’m still becoming an adult myself, and it reminds me to be

104. H O L Y πŸ’§ I just turned 21 and now legally have a right to harass you for your snacks.

105. Here’s to 21 years of laughter, learning, love, and late nights that never seemed too early. Here’s to you, [Wife/Husband/Friend/Daughter/Son’s name]!

106. Celebrate πŸŽ‚ all year long with 4/21’s favorite drink.Β 

Leave a Comment