Best 21st Birthday Hashtags

As we all know, hashtags are a great way to get more likes and followers on social media. If you’re a little stuck for ideas when it comes to coming up with the perfect caption for your 21st birthday pictures, we got you covered. Here are some of our favorite ideas:

With the 21st birthday only a few days away, you’re ready to celebrate. But how do you make sure everyone is talking about your special day long after it has passed? The key is using the right hashtags. That’s why we’ve put together a list of the best hashtags to use for your 21st birthday. Simply copy and paste any of the 21st birthday hashtags below when posting to Instagram, Twitter, Tiktok, and other popular social media sites.

Related: Hashtags for 20th Birthday

Top 10 Hashtags for #21stbirthday

#21stbirthday #21stbirthdaycake #21stbirthdayparty #21stbirthdaypresent #21stbirthdaycelebrations #21stbirthdayweekend #21stbirthdays #21stbirthdaygift #21stbirthdayideas #21stbirthdaytrip

Trending hashtags for #21stbirthday

Low Competition: #21stbirthdayideas #datpart #babyabel #quiseandsarah #babydrip #lotsofhair #dripglosssupporter #sarahsbig21bitch #youngandpretty 

Medium Competition: #21stbirthday #abel #birthdaygirl #blackgirlmagic #blackwoman #newmom #popping #smokeyeye

High Competition: #followforfollow #momlife #pretty

Most Popular hashtags for #21stbirthday on Instagram

Low Competition: #21stbirthdaycake #21stbirthdayparty #21stbirthdaypresent #21stbirthdaycelebrations #21stbirthdayweekend #21stbirthdays #21stbirthdaygift #21stbirthdayideas #21stbirthdaytrip #21stbirthdaysg #21stbirthdaygirl #21stbirthday🎂 #21stbirthdayballoons #21stbirthdaycakes #21stbirthdayphotoshoot #21stbirthdaycelebration #21stbirthdaybash #21stbirthdaycookies #21stbirthdaydinner 

Medium Competition: #21stbirthday

21st Birthday Captions

You are the best brother and friend. We can’t wait to see all of the amazing things that the next years have in store for you. Happy 21st birthday!

Hanging with my favorite tank tops and these girls 💋😍👯 #happy21stbirthday

Happy 21st birthday to this dancing beauty 👑

Today marks a milestone for the youngest of us: our 21st birthday. We’re so proud of all you’ve accomplished so far and we can’t wait to see what the future brings.

Happiest bday to this limitless guy. He’s made me laugh harder than anyone else in this world, and I’m so thankful I get to spend my life with him.

Happy birthday, sweet girl! Today you enter a world of fun and adventure.

It’s my birthday…And I’ll post if I want to 🎈😉🎁#happybirthday #21stbirthday

TURNING 21 never looked so good!

May your years be uber-cool and your future be uber-bright. ❤️🍾🎉 happy 21st birthday.

Here’s looking at you, with all my love. Happy 21st birthday to me, and cheers to your next year of growing up better than before!

Happy 21st birthday to the best brother in the world!

Happy 21st birthday to my friend, brother, and wingman [insert name]. To make it official here is 21 reasons why I love him. #21reasonstolovehim

Happy Birthday to my little sister! Can’t believe you’re finally turning 21. I love you, sissy. ❤

What is something you would buy yourself for your 21st birthday?

To all the best (and worst) years, 🍾❤️. You’re 21 today and anything is possible! 💜🍾

From bus rides to big vacations, make a safe one. We’re wishing you a bubbly birthday. 🍾

What makes you happy on your birthday?

Let’s celebrate another year of milestones with this special birthday deal.

🎉🎊👬🥂 to another year! We’re just as excited to celebrate with you ⭐️ and say cheers to wherever you hope life takes you next.

#Happy21stBirthday to my sister, who lights up each room she walks into with endless love and a magnetic personality. 💕 So many more parties in your future! 😘

Happy 21st birthday to our favorite quarter-life crisis child.

Happy 21st to a magical unicorn who has seen it all and done it all, and probably made some kind of art about it. We couldn’t be more grateful that God trusted us

It’s been a good year. We hope it keeps getting better. 🎉 #Happy21stBirthday

Hooray! Our favorite little birthday girl turns one today. Happy 21st Birthday to our first born! We love you bunches and bunches!

It’s your birthday. It’s my birthday. Let’s go out and live life to the fullest!

Happy Birthday to the man who taught me what it means to be a man. You have always been a constant source of love, support, and laughter in our lives. I know you’re always bragging about your boys, but one day they’ll understand

When it comes to birthday cake, there’s no such thing as too many candles. 🎂🍰 #big21

It’s your birthday. Make the day, make it happen!