21st Birthday Party Ideas to Help You Celebrate in Style

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Turning 21 is a big deal. It’s the official start of adulthood, and it’s a time to celebrate all that you’ve accomplished so far. But what’s the best way to celebrate such a momentous occasion? By throwing an epic party, of course! If you’re stuck on what kind of party to throw, never fear. We’ve got 21st birthday party themes and ideas that will help you celebrate in style.

21st Birthday party by the pool

21st Birthday Party Themes

There’s no better way to celebrate your 21st birthday than by throwing a fun party! Here are some great party themes to get you started:

Roaring 20s

Go back in time for your birthday bash by throwing a Roaring 20s-themed party. Think flapper dresses, feather boas, pearl necklaces and gangster attir. Serve up some delicious cocktails and don’t forget the Charleston music and the champagne!

Pool Party

If your birthday falls during the summer months, take advantage of the weather and throw a pool party complete with floats, games, and lots of sunscreen. Serve up some delicious cocktails and mocktails to keep things cool.

Circus Theme

If you’re a fan of all things weird and wonderful, why not throw a circus-themed party? Invite your guests to come dressed as their favorite clown or performer, and have plenty of delicious circus food on hand. Be sure to have some entertaining games and activities planned, too!

Masquerade Ball

For a more sophisticated affair, hold a masquerade ball! Guests can dress up in their finest evening wear and masks, and dance the night away. Serve champagne and canapes for a truly luxurious experience.

Masquerade Theme 21st party

Casino Night

For a glam and grown-up take on a birthday party, host a casino night complete with blackjack, poker, and roulette tables. Serve up cocktails and hors d’oeuvres to keep things festive.

Be sure to have plenty of games on hand and have plenty of prizes on hand so that everyone has something to win. With these things in mind, casino night is sure to be a success!

Vintage Glamour

There’s something about vintage glamour that never goes out of style. Perhaps it’s the timeless appeal of Old Hollywood movie stars like Audrey Hepburn and Humphrey Bogart. Or maybe it’s the elegant simplicity of vintage clothing and jewelry.

So take a step back in time and channel your inner glamour girl. You’re sure to turn heads and have a lot of fun in the process.

vintage birthday party

Tropical Theme

A tropical themed party is perfect for a 21st Birthday. Think Hawaiian shirts, tiki torches, and fruity cocktails. Set up a photobooth with props like palm fronds and leis, and have fun in the sun!

Tropical themed parties are all about fun in the sun, so be sure to have plenty of refreshing drinks and snacks on hand to keep your guests cool.

Decorations for Your 21st Birthday Party

Turning 21 is a momentous occasion. Not only can you finally legally drink alcohol, but you’re also officially an adult. As such, your 21st birthday party should be a night to remember.

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To make sure your party goes off without a hitch, be sure to stock up on decorations and supplies. For example, you’ll need plenty of streamers and balloons to transform your venue into a celebration-worthy space.

Girl holding 21st balloons

21st Party Food and Drink Ideas

Whether you’re planning a small gathering of close friends or a big bash open to everyone you know, the food and drink menu is an important detail to consider. If you’re looking for ideas, here are a few possibilities to get you started.

Make sure to have plenty of alcoholic and non-alcoholic drinks on hand. You could consider serving a signature cocktail and mocktail along with beer and wine. If you’re not sure what kind of cocktail to make, do a little research online or ask your friends for suggestions.

As for food, finger foods are always a good idea for parties. Think about serving mini burgers, chicken wings, tacos, or even sushi rolls.

And don’t forget the cake! A 21st birthday cake is the perfect way to sweeten the occasion. Whether you choose a classic design or something more unique, be sure to top with some fun 21st Birthday decorations.

21st Party Activities and Entertainment

Turning 21 is a momentous occasion. It’s the perfect time to celebrate your newfound independence with a fun and festive party. Here are a few ideas to help you make your 21st birthday bash one to remember:


Start the party off with a bang by hiring a professional photographer to snap some pictures of you and your guests as they arrive. Or be sure to set up a photo booth with props so that everyone can have some fun.

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For a 21st birthday party that’s sure to be a blast, hire a DJ to keep the tunes flowing all night long. If you’re on a budget, see if one of your friends has some musical talent and can act as your own personal DJ for the evening. Or put together a playlist of all your favorite songs to play on the night.

Dance Lessons

For something a bit different and to get everyone moving and shaking, hire a dance instructor to give a quick lesson before the party gets started. Salsa, swing, hip hop or line dancing – the choice is yours!

Casino Games

Bring the excitement of Las Vegas to your 21st birthday party with some casino-themed games. Blackjack, poker, and roulette are all great options. Be sure to have plenty of fake money on hand so that everyone can play.

casino party

Scavenger Hunt

This one is perfect for the birthday boy or girl who loves a good challenge. Hide clues around town and let your guests solve the puzzle to find the ultimate prize.


Have each guest create their own signature cocktail at a DIY bar station. Set up an array of liquor and mixers and let your guests get creative (and maybe a little tipsy).

How to Make Your 21st Birthday Party Unforgettable

Turning 21 is a momentous occasion. Finally, you’re an official adult! Whether you’re looking to let loose and party hard or just spend time with close friends and family, your 21st birthday should be a day to remember. Here are a few tips to make sure your 21st birthday is unforgettable:

Plan ahead

Make sure you give yourself enough time to plan the perfect party. Taking care of all the details in advance will help you relax and enjoy your big day.

Choose the right venue

Where you have your party can make all the difference. Pick a place that’s special to you or that fits the theme of your party.

Create a guest list

Invite people who will make your birthday fun and memorable. From close friends to family members, choose guests who will add to the celebration.

Do something unique

Make your party stand out by doing something different. Whether it’s hiring a band or setting up an outdoor movie screen, adding a personal touch will make your birthday party one to remember.

No matter what theme you choose for your 21st birthday party, the most important thing is that you have fun celebrating this milestone with your friends and family – after all, it’s your big day! . Have fun planning and cheers to 21 years!

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