Planning a party for your little girl’s third birthday? It’s a special year and one you can really have fun with when it comes to themes. I have so many 3 year old girl birthday theme ideas to share with you, and I promise, she’ll be obsessed with them.
The Cutest 3 Year Old Girl Birthday Theme Ideas She’ll Be Obsessed with
1. Her Royal Threeness
It doesn’t get much cuter than a royal theme for her birthday. And you can even find a kit on Amazon to help you decorate with balloons.
Along with balloons, you can:
- Set up a food bar that looks like a castle
- Hang pink and purple balloons and streamers from the ceiling
- Set up a beauty bar with crowns, chapstick and toy jewelry for the kids to take home
- Create a dress up corner with princess dresses and accessories
I also found this princess party supply kit that includes balloons, banners, plates, silverware and other essentials you’ll need for your celebration.
2. Little Miss Threenager
I love this sassy theme for a 3-year-old’s party. The retro decor is adorable, with smiley faces and bright colors.
Grab this kit from Amazon to help decorate for this theme. Don’t forget to include the Speed Limit 3 sign, too.
Related: Wild One Birthday Theme Ideas That Are Cute, Easy, and So Fun to Set Up
3. Young, Wild & Three
There’s no doubt that your little one is a handful, so a “wild” 3 year old girl birthday theme seems fitting.
And there are so many creative ways to bring this theme to life.
- Set up a balloon display with a “Young Wild and Three” sign
- Serve cookies or cake with animal prints
- Create a food bar with balloons, a jungle background and plenty of balloon animals
Another adorable idea is to set up an “adoption” center for safari animals. The kids can pick a stuffed animal to adopt and take home. This kit has larger stuffed animals, or you can offer smaller keychain pets for guests to adopt.
If your little one loves flowers, you can set up a wildflower display (like this one) and let the kids choose a bouquet to take home.
They could even build their own, which would make the day even more unforgettable.
4. Three Rex
An absolutely adorable theme that any three-year-old girl would love. Because who says dinosaurs have to be a boy’s thing?
There are so many cool ways to decorate for this theme, starting with Three Rex balloons. They come in multiple colors, so choose one that matches the rest of your decorations.
You can also add pink, white and gold balloons if you want more of a girly theme.
T-rex balloons and figurines can help you decorate other spaces.
You can also have:
- A Jurassic-themed cake with pink and purple sprinkles. I’ve also seen cakes with T-rexes on top dressed in pink tutus.
- Dinosaur cookies as dessert.
- Dino goodie bags filled with treats and themed toys.
Set the table with jungle themed plates and little dino figurines.
5. Under the Sea, She’s Three
This 3 year old girl birthday theme is perfect if your little one loves mermaids. You can really go wild with this theme.
- Decorate with mermaid tail, seashell and colorful balloons. Don’t forget the number 3 and “Under The Sea” balloons, too!
- Get a mermaid cake topper with other cake decorations to make an under-the-sea cake.
- Use mermaid party plates and napkins.
I also love the idea of decorating walls with streamers and balloons to look like sea plants and bubbles, just like in the Pin below.
If it’s warm outside, you can set up a kiddie pool filled with sand and treasures (little toys). Add shovels and tell the kids to start digging for buried treasure.
6. 3 Scoops of Fun
Here’s a fun theme for a summer birthday. Everyone loves ice cream, so your little one is sure to adore this theme.
There are so many fun things you can do.
- Make a cake with a fallen-over ice cream cone on top, or better yet, serve an ice cream cake. You can also serve cupcakes that look like ice cream cones, topped with a cherry and sprinkles.
- Set up an ice cream bar, where the kids can choose what flavor they want and their favorite toppings. Offer sprinkles, gummy bears, chocolate, crushed cookies and whatever else you want.
- Give ice cream cone cakes as favors. Just pop frosted cake balls into a waffle cone and wrap it up.
- Have the little ones play “pin the cherry on the ice cream cone.” Set up a board with a three-scoop ice cream cone painted on it. Blindfold each guest and let them try to pin the cherry on top of the ice cream cone (here’s some inspiration).
There are so many fun ways to decorate for this theme. You can create ice cream cones with balloons, or you can build sweet entryways with sprinkle balloons. Go wild and have fun with this idea.
7. Western Theme
How adorable is this Western 3 year old girl birthday theme? If your little one loves horses and farms, then she’ll adore this theme.
Related: 21+ Fun Dinosaur Party Food Ideas Kids Will Go Crazy For
- Decorate with cowboy boots. Stick flower arrangements into the boots for a quirky display.
- Let the kids play dress-up with cowgirl hats and bandanas.
- Have a “Pick a Pony” station, where guests can adopt a horse and take it home with them.
- Set up a balloon display with cowprint balloons, cacti and pink and gold balloons.
8. Unicorn
Unicorns are always a great theme for birthday parties, and you can get really creative with the decorations and food.
- Set up rainbow balloons
- Decorate tables with colorful skirts
- Serve a pastel-colored cake with a unicorn horn
Make sure you use bright colors and serve lots of treats.
9. Magical Mermaid
Most little girls love mermaids. You can buy (or make) a cake with a seashell and pearl inside on top and small, multi-colored scales on it. Add balloons on the wall that include magical colors, such as teal blue and light purples.
Cupcakes with little shells on top or colorful lollipops are two other additions to this idea that she’s sure to love.
If she likes the Little Mermaid, be sure to let it play in the background. Decorations for this theme are a lot of fun, such as Jellyfish paper lanterns or a mermaid cake topper, like this one. Parents can also buy entire Mermaid theme kits online with plates, balloons, tablecloths and other fun items.
10. Train Party Theme
A train party is a good 3 year old girl birthday theme (depending on the child) and one that you can easily put together. You can get as creative as you like with this option, such as making a railroad crossing sign out of the girl’s first and last name.
You can also add neat touches, such as:
- Train tickets with the first letter of the person’s name
- Small candies and popcorn boxes
- Train tablecloths (like these)
- Coloring poster for your guests
If you want to go over-the-top, consider this 201 piece train birthday decoration kit that includes balloons, signs, cups, plates and tons of other decorations all in one package.
Related: 25 Boho Birthday Party Ideas For The Perfect Outdoor Celebration
11. Paw Patrol
Paw Patrol is another fun birthday theme to put together, and the Pin above has printables that you can even use to bring this idea together. Start with your invitations, which you can create on your own online or opt to use one of the premade options: Amazon has plenty of options, like these ones.
Once you have your invitations sent out, you can make cute hats with dog ears for the kids to wear.
For the table and centerpiece, consider a balloon arch and a yellow curtain with a large Paw Patrol sign in the middle. I recommend using this poster, or you can custom-make one, too.
Food can include anything you wish, but the Pin’s author has a lot of great ideas:
- Sweet Chex mix, which takes 15 minutes to make and is very colorful
- Puppy bark, which is just chocolate fudge that is made of condensed milk and vanilla extract
- Fetch sticks, which are simply kabobs that you can make with a variety of fruits, such kiwi, blueberries and strawberries
12. Peppa Pig Party
Peppa Pig is one of the cutest birthday party ideas that has endless options to choose from. And your little one (and you) get to look at all of these adorable decorations:
- Fill a plate with Peppa cookies, which will require you to have this cookie mold
- Place a pink tablecloth on your table and put cut little Peppa decorations on it, such as these cute plates
- If you have pink boots, fill them with flowers to make “muddle puddles”
- Decorate a wall with Peppa Pig balloons, like these ones
If you want to go over the top, you can use pink cups and even put Peppa photos on the walls. For your food choices, you can opt for a lot of different options: cheese bites, fruit kabobs, puff pastries, mini sandwiches or other party snacks.
I’ve seen some parents go crazy with their food ideas. If you pay close attention to the Pin or go to the author’s blog, you’ll see how they made an entire Peppa Pig apple with the sun, clouds and grass. Ideas for cupcakes are also on the list, but they will require a bit of artistic talent for you to be able to make.
