31 Best 21st Birthday Themes You And Your Friends Will Be Obsessed With - Daneila Bright (2024)

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You've come to the right place if you want to know about the best 21st birthday themes ever. Here are 31 unforgettable ideas for a 21st birthday party that anyone would love.

31 Best 21st Birthday Themes You And Your Friends Will Be Obsessed With - Daneila Bright (1)

It’s your 21st birthday and you want to make it a night to remember. You and ALL your friends will LOVE the fun theme you end up picking for your birthday party.

Really, you have to check out all of these 21st birthday themes because I am totally hooked on them. There's something here for everyone, whether you're planning a formal affair or a casual get-together. One of my favorites is the "[ENTER]," which can be found down below in this post.

Whether you’re looking for a wild night out or a more relaxed evening, we’ve got you covered with these 21st birthday themes. Check out our list of 21st birthday themes that are sure to make your special day even more memorable.

This post is all about the best 21st birthday themes.

Table of Contents

1. 60's Themed Party Bus

2. Arabian Nights Party Theme

3. Black And White Themed Party

4. White Lies Party Theme

5. 70's Disco Themed Party

6. 1920's 21st Party Theme

7. 21st Birthday Butterfly Party Theme

8. Studio 54 Birthday Party

9. Under The Sea 21st Birthday Party

10. Pink Themed Party Bus

11. 80's Birthday Themed party

12. Bottomless Brunch 21st Birthday Party

13. Escape Room Party Theme

14. 21st Birthday Themed Pool Party

15. Paint n Sip Party Birthday Theme

16. Casino Night 21st Birthday Party

17. Scavenger Hunt Birthday Themed Party

18. Spa Day Birthday Parties

19. Booze Cruise Birthday Parties

20. Costume Party Theme

21. Fun Night In Themed Parties

22. Memory Lane Themed Parties

23. Small Group Tours

24. 21st Birthday Themes Mixology Class

25. Champagne Breakfast

26. Brewery Tour 21st Birthday Party

27. Favorite Restaurant

28. Dance Floor 21st Birthday Themes

29. Boozy Brunch Birthday Party

30. Bar Hopping 21st Birthday Themes

31. Fun Theme

THE BEST 21ST BIRTHDAY THEMES:

1. 60's Themed Party Bus

For your 21st birthday party, why not celebrate in style with a 60's themed party bus? It's the perfect way to commemorate this important birthday and have so much fun doing it!

You or any birthday girl will love being the center of attention on her special day, and what better way to do that than by cruising around town in a retro themed bus?

Decorate the bus with streamers and balloons, and blast some classic 60's tunes to get everyone in the party mood.

Make sure to stop at all of your favorite spots around town, and don't forget to take plenty of photos to document this special day. Happy birthday, and enjoy every minute of your 21st year!

2. Arabian Nights Party Theme

An Arabian Nights party is the perfect theme for your 21st birthday party. It is so much fun and all your guests will enjoy it. This is a great way to celebrate your 21st birthday and make it a memorable event. I would seriously consider this as one of my top picks of 21st birthday themes.

3. Black And White Themed Party

What’s the best way to celebrate your 21st birthday? With a black and white themed party, of course! This is a fun and unique way to celebrate such a milestone birthday that's sure to make this year a memorable birthday. Plus, it’s so much fun planning everything out – from the invitations to the decor to the fun outfits.

Your guests will love coming to your black and white themed party. And you’ll have such a blast celebrating with them. It’ll definitely be a 21st birthday party to remember. So start planning now and make sure it’s a night you – and your guests – will never forget!

4. White Lies Party Theme

This is possibly one of my absolute FAVORITE 21st birthday party ideas! A White Lies Party is where you where, white theme clothing, and you write your white light on it. Like if I'm always running late to an event I might write "always on time for every event."

Get creative! This 21st birthday party idea is definitely what you make it. We did it for my brother's birthday when he turned 21 and the birthday boy LOVED IT!

5. 70's Disco Themed Party

When it comes to celebrating a special occasion birthday, there is nothing quite like disco themed parties. And if you are looking to celebrate your 21st birthday in style, then a 70s disco themed is the perfect way to do it.

Here's everything you need to know about throwing the ultimate disco themed birthday parties.

For starters, a disco themed party is the perfect way to get all of your friends together for one big night of fun. And since it's your 21st birthday, you can expect that everyone will be up for dancing the whole night away. To make sure that everyone gets into the spirit of things, be sure to set a dress code - think glitter, sequins and platform shoes.

When it comes to setting the scene for your disco birthday party, there is no shortage of options.

6. 1920's 21st Party Theme

When it comes to celebrating a 21st birthday, there are many party options to choose from. However, if you want to ensure that all your guests have an unforgettable time at an unforgettable party, then a 1920s-themed party is the way to go!

Not only will everyone enjoy dressing up in vintage-inspired clothing, but the overall atmosphere of the party will be full of fun and excitement. To make sure that your guests are able to fully enjoy themselves, be sure to provide plenty of food and drink options as well as some fun activities.

With a little bit of planning, your 1920s-themed party will be a hit with everyone!

7. 21st Birthday Butterfly Party Theme

For a fun and festive 21st birthday party, consider a butterfly party theme! This can be easily incorporated into your decor, food and activities.

A photo booth is a great way to get everyone in on the fun! Set up a couple of props and backdrops, and let your guests snap away. You can even have a few fake butterflies flying around for an added touch.

If you're looking for some festive food ideas, how about butterfly-shaped cookies or cupcakes? You could also get creative with fruit platters, making them into fun shapes like butterflies.

And for activities, why not set up for a butterfly-themed scavenger hunting activity? This can be done both indoors and outdoors, depending on your location. Be sure to hide some prizes too, so everyone has something to take home with them at the end of the party!

8. Studio 54 Birthday Party

For a 21st birthday party that is sure to be a night to remember, consider throwing a Studio 54-themed bash. This ICONIC disco was the place to be in the 1970s, and your guests will love getting decked out in their best disco attire.

To really set the mood, hire a live band or DJ to play all of your favorite disco hits. Serve up some delicious co*cktails and appetizers, and get ready to dance the night away!

9. Under The Sea 21st Birthday Party

This year, celebrate your birthday under the sea! Decorate with animal print tablecloths and napkins, and set up a photo backdrop with karaoke machine in front.

Fill the room with blue and green balloons, and have fun dancing and singing all night long. Ariel would be so proud!

10. Pink Themed Party Bus

Forget about renting a stuffy old limo for your 21st birthday- a Pink Themed Bus for your party is the new way to celebrate! Who doesn't love a road trip?

Your own private chauffeur will take you and up to 31 of your closest family members and friends on a tour of the city, stopping at all your favorite hotspots.

You can even decorate the inside of the bus with birthday cards and streamers to make it extra special. And don't worry about drinking and driving- there's plenty of room for dancing and partying on the bus, so you can let loose and have a blast!

11. 80's Birthday Themed party

For many people, the 1980s were a decade of excess, and that means big hair, shoulder pads and neon everything. If you're planning an 80s themed party for a friend or family member's 21st birthday, there are a few things you'll need to do to make sure it's a success.

First, create a playlist of all the greatest hits from the 1980s. You can't have an 80s party without some great music to dance to! Next, break out the neon clothing and accessories. Encourage your guests to dress up in their best 80s gear - the more outrageous, the better!

Finally, don't forget the food and drinks. Serve up some classic 80s snacks like Tangy Tangerine Punch and Jell-O shots. And for dessert? A giant birthday cake decorated with neon icing, of course!

12. Bottomless Brunch 21st Birthday Party

For many, the 21st birthday is a right of passage. It's a day to celebrate becoming an adult and to reflect on the past year. And what better way to do so than with a bottomless brunch?

Whether you're looking for a laid-back affair or a wild day out, a bottomless brunch is the perfect way to start your 21st birthday celebrations.

13. Escape Room Party Theme

Turning 21 is a big milestone event. For many, it's a time to celebrate with friends and family. But for some, it's a time for reclaiming escape room events.

Escape rooms are becoming increasingly popular, so why not have an escape room 21st birthday party? It's a great way to get all of your friends together and have some fun.

There are plenty of ways to make your escape room party theme unique. You can pick a specific era or setting, or even base it off of your favorite TV show or movie. Whatever you choose, make sure it's something that everyone will enjoy.

So if you're looking for a fun and unique way to celebrate your 21st birthday, consider having an escape room party.

14. 21st Birthday Themed Pool Party

A pool party is the perfect way to celebrate your 21st birthday. You can invite all your friends and have a huge party.

A luxurious pool party will be the PERFECT setting for your birthday party. You can have all your friends over for a fun day of swimming and sunbathing. The pool party will be a great way to celebrate your special day.

15. Paint n Sip Party Birthday Theme

The best way to top off your 21st birthday party is with a Paint n Sip Party! All the services are included so you can just sit back, relax, and paint the night away. We’ll provide the canvas, paint, brushes, and wine. You bring the cake and we’ll take care of the rest!

16. Casino Night 21st Birthday Party

For most people, turning 21 is a pretty big deal. You can finally legally drink alcohol, which means you can go out and party with your friends without worrying about getting in trouble. And what better place to celebrate your 21st birthday than Las Vegas?

Vegas is the perfect place to let loose and have some fun. There are plenty of hotels to choose from, so you can find one that fits your budget. And if you’re feeling lucky, you can try your hand at gambling. Just be sure to set a budget so you don’t spend too much money.

If you’re not into risking your gambling luck, there are still plenty of things to do in Vegas. You can go sightseeing, take in a show, or just relax by the pool.

One of my favorite things to do while in Vegas is to go back to my hotel room, after a long night out, and order room service. This is a fun way to wind down alone or with a friend after spending time with a big group.

17. Scavenger Hunt Birthday Themed Party

A 21st birthday is a big milestone. What better way to celebrate than with scavenger hunting? This is a great way to get family and friends involved in the festivities. Here are some tips on how to make your own scavenger hunting themed party a success.

Planning a scavenger event can be daunting, but it doesn't have to be. The first step is to come up with a list of items that need to be found. Once you have your list, you can start brainstorming where those items might be hidden. You can also create clues to help guests find the items on the list.

The next step is to create teams or let guests choose their own partners. This will make the scavenger hunt more fun and competitive. Each team can have an equal number of people so that everyone has a fair chance of winning.

18. Spa Day Birthday Parties

If you're looking for something different than the typical bar scene to celebrate this momentous occasion, try one of these unique spa day birthday parties.

For the nature lover, head to a local mud bath or steam room. Not only is it refreshing and good for the skin, but it's also a fun way to relax and connect with nature.

If you're feeling adventurous, plan a road trip to a nearby town or city for some spa treatments. You can even make a weekend of it by booking a hotel stay for the night.

Whatever you decide to do, make sure your 21st birthday is one to remember with one of these unique spa celebrations.

19. Booze Cruise Birthday Parties

For many young adults, their 21st birthday is a right of passage. It's a day when they can finally legally drink alcohol and party with friends. A popular way to celebrate this milestone birthday is with a booze cruise.

Guests wear festive attire and enjoy music and dancing onboard the ship. And, of course, there are plenty of jello shots to go around, which is a HUGE crowd pleaser! So this party option is a guaranteed way to please a large group of people. Plus, it's a unique way to celebrate becoming a legal adult.

20. Costume Party Theme

A costume themed party is a great way to celebrate a fall birthday. For a 21st birthday, the birthday boy/girl can dress up as his/her favorite character from a movie, TV show, or book.

If the birthday boy/girl is a fan of the Harry Potter series, he/she can dress up as Harry Potter, Hermione Granger, or Ron Weasley or a cowgirl for example.

21. Fun Night In Themed Parties

I always love spending nights in with my friends. This is definitely something that I did recently when the world was on PAUSE - if you're like me you found a way to make the best of it even if it was lonely and you were making music video - ish content with your fur babies. Lol.

22. Memory Lane Themed Parties

It's the time when you officially become an adult and are finally able to do things like vote, drink alcohol, and rent a car. For many people, it's also a time to reflect on their childhood and teenage years.

One way to celebrate your 21st birthday is by having a party that takes you down memory lane. You can set up a photo booth with props from your favorite childhood TV show or movie. Have fun foods that you loved as a kid, like candy floss or cake pops. And play games that will take you back to your childhood, like charades or Twister.

If you want to go all out, you could even have a themed party based on your favorite childhood book or video game.

23. Small Group Tours

Small group tours are one of my favorite 21st birthday party ideas! If you prefer small gatherings over a big party then this will be your jam!

24. 21st Birthday Themes Mixology Class

Looking for 21st birthday party ideas? Turning 21 and throwing in a splash of alcohol makes 21 birthday party ideas the ultimate crowd pleaser.

25. Champagne Breakfast

I am so obsessed with champagne breakfasts. This is where I always get the best alcohol bouquet gifts from my friends and family too! Then we all just share and have a great time telling stories and catching up if we haven't seen each other in a long while.

26. Brewery Tour 21st Birthday Party

The first letter of birthday starts with a "B" same as Brewery. Why not go on a brewery tour on the day you become of legal drinking age?!

27. Favorite Restaurant

If you're not feeling like throwing a huge soirée, grab a family member or the whole family and head to your fave restaurant to indulge in your favorite meal.

28. Dance Floor 21st Birthday Themes

Why not get down with your bad self on the dance floor for your 21st birthday?!

29. Boozy Brunch Birthday Party

This year, celebrate your birthday with a boozy brunch party! Invite all your best friends and family for a champagne breakfast complete with mimosas, Bloody Marys, and other delicious co*cktails. Make it a big party or a small and intimate one!

30. Bar Hopping 21st Birthday Themes

Jello shots and alcohol bouquets are the perfect way to celebrate your 21st birthday. Here are some tips on how to make your party a success:

Plan ahead and make sure you have enough alcohol for all your guests. Jello shots are a great way to get the party started, but be sure to also have plenty of other drinks available.

Decorate your home or venue with festive decorations. Balloons and streamers are always a hit. And don't forget the cake!

Make sure your guests are aware of the dress code. Whether it's casual or formal, let them know in advance so they can plan accordingly. Most importantly, have fun! This is your special day, so enjoy every minute of it!

31. Fun Theme

It's your 21st birthday, and you want to make it special! What better way to celebrate than with a fun themed party with your close friends and family members? Here are some great ideas for making your 21st birthday party one to remember:

Make it a best friend themed party! Invite your besties over for a night of celebrating you. Have fun games and activities planned that are all about friendship and love. Don't forget the birthday gift exchange - this is always a favorite at best friends parties!

Keep it relaxed and chill. This is your day to let loose and have some fun, but there's no need to go overboard. Invite your closest pals over for a low-key celebration at home.

Make sure there are plenty of snacks and drinks on hand, and don't forget the cake!

Also check out this post for additional 21st birthday ideas!

This post is all about the best 21st birthday themes.

31 Best 21st Birthday Themes You And Your Friends Will Be Obsessed With - Daneila Bright (30)

31 Best 21st Birthday Themes You And Your Friends Will Be Obsessed With - Daneila Bright (2024)

FAQs

What are the colors for the 21st birthday party? ›

21st Birthday Party Themes

Gold, silver and black are classic colours for a 21st birthday party.

What makes a 21st birthday special? ›

This pivotal occasion is marked by legal rights and newfound responsibilities, as young individuals step into a new chapter of life. In various cultures, the 21st birthday is associated with significant privileges, such as voting and legally consuming alcohol.

What theme is best for birthday? ›

The 40 Best Birthday Party Themes for Kids and Adults
  • Woodland Wonderland. Suburbs Mama. ...
  • Circus Soiree. Crystal Satriano Photography. ...
  • Construction Spree. Vixenmade. ...
  • Mermaid Merriment. DIY Inspired. ...
  • Dinosaur Jam. Party Pieces. ...
  • Garden Gala. The Cottage Mama. ...
  • Art-y Party. Glorious Treats. ...
  • Talent Show Party.
Oct 27, 2023

Why is 21st birthday special for girls? ›

The 21st birthday is an special because this is the time when you are officially become an adult and capable to do the things independently.

What is a catchy phrase for 21st birthday? ›

Welcome to the roaring 20s! Gen-z is growing up! I-gen is on the way to old-gen! Finally legal — after all these beers!

What is the symbol of the 21st birthday? ›

Key pendants are customarily given as a present on the 21st birthday. This tradition dates from the times when at twenty-one, you were considered old enough to be a key-holder to your family's home, and thus hold a symbolical 'senior' position in the family.

Is 21 a golden birthday? ›

What is a Golden Birthday? Your golden birthday is when the date of your birth coincides with your age. For example, if you were born on October 8, your golden birthday took place when you turned 8. If you were born on December 21, your golden birthday took place when you turned 21.

What is a 21 year olds birthday? ›

Many people dream about this special milestone from childhood, romanticizing the day they will one day reach true “adulthood." In the United States, 21st birthdays are a particularly big deal given the fact that it's also the legal drinking age.

Is 18 or 21 a bigger birthday? ›

21st. Sure turning 18 is part of adulthood, but you're still a teen, regardless. Now 21 is when you start facing adult life a little bit more.

Which birthday is more important, 20 or 21? ›

21st birthday because that's the day you are officially an adult. A young adult with responsibilities. You get to drink alcohol and go to the clubs. You are able to get your own place and pay your own bills.

What is the most important birthday for a girl? ›

For many American youths, 16 is probably the most important birthday they'll celebrate before they reach legal adulthood. At 16, a young person can get a driver's license and a job—and, more importantly, they can enjoy the freedom and be expected to cope with the responsibilities that come with both.

What is a cool party theme? ›

Awesome Party Themes
  • Host a Rhinestone Rodeo! - A Disco Cowgirl Party - Revel and Glitter. ...
  • How to Host a Barbie Girls Night - Revel and Glitter. How to Host a Barbie Girls Night - Revel and Glitter. ...
  • Farm Chicks Pre-Show Party at Anthropologie - Jenny Cookies. ...
  • Love Shack, Baby!

How do I choose a theme? ›

Before you choose your theme you should have a clear idea of the goal of your event, who is attending and what you want your guests to 'take-away' from the occasion. Adding structure by asking these kind of questions will help you formulate a theme that your attendees will LOVE.

How do I choose a party theme? ›

The important thing with party themes is to really think them through and ask yourself, “Does this sound more fun than it actually will be?” For example, off the top of your head, a baseball theme might sound fun. But is a roomful of guests dressed in baseball uniforms really that great?

Is 21st birthday a golden birthday? ›

Your golden birthday is when the date of your birth coincides with your age. For example, if you were born on October 8, your golden birthday took place when you turned 8. If you were born on December 21, your golden birthday took place when you turned 21.

Is a 21st birthday a milestone birthday? ›

Birthdays and anniversaries: The 21st birthday is often celebrated as a significant milestone, representing the entrance into adulthood. Additionally, the 21st wedding anniversary is sometimes considered a noteworthy occasion.

Why is 21st birthday called Key birthday? ›

The concept of giving the (21st) “Key to the door” - the freedom to come and go without parental supervision - started taking the shape from 1930. Decorated keys were given as presents, and were featured on cards and the birthday cake.

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