popular-boy-1st-birthday-party-themes

Your baby’s first birthday party is such a huge milestone, and choosing the perfect theme makes it even more memorable. Whether you’re after a sweet animal theme, a fun vehicle party, or a timeless classic, these popular boy 1st birthday themes are guaranteed to delight your little one and your guests. ✨

There are plenty of special boy first birthday themes to choose from such as a prince themed 1st birthday, a Mickey Mouse 1st birthday and so many more!

Also, if you have an older son, we also have a post with our most popular boy 2nd birthday themes and one with our birthday themes for boys of any age.

And if you have a daughter, check out our most popular first birthday themes for girls.

Contents

Reasons to Love These Unique Boy 1st Birthday Party Themes!

Party on Easy Mode: Forget the stress – these unique boy 1st birthday themes come with hassle-free, ready-to-go supplies, making party planning a breeze.
Epic Toddler Entertainment: Packed with age-appropriate activities, these themes promise a toddler-approved bash your little one will love.
Insta-Worthy Vibes: Transform your space into a visually stunning wonderland, perfect for capturing moments and sharing with friends.
Celebration Without the Splurge: Cheers to budget-friendly festivities! We offer over 20 sets of free boy birthday party printables you can download for free.
Anywhere, Anytime Party Magic: Whether it’s a living room or a backyard, these boy 1st birthday themes adapt seamlessly to any venue.
Unforgettable Fun: From mouth-watering treats to interactive surprises, these boy first birthday themes are your ticket to a celebration that’s downright unforgettable.

Most Popular Boy 1st Birthday Party Themes of 2025!

🐾 Animal & Character Themes

Looking for boy 1st birthday themes that are always a hit? 🐻🦁 From classic characters like Mickey Mouse to adventurous Wild One Safari and adorable woodland animals, these popular themes bring so much joy to your little one’s big day. They’re perfect for creating unforgettable memories with cute decor, fun activities, and amazing photo opportunities.

1. Mickey Mouse Parties

Mickey Mouse has always had a special place in everyone’s heart, making him the perfect choice for a little boy’s first birthday party. 🐭✨ Create a magical day with a Mickey Mouse 1st birthday party, one of the most popular first birthday themes for boys!

Check out the best Mickey Mouse party ideas we’ve found to help you throw the party of the year.

Browse real Mickey Mouse parties here.

🎉 FREE MICKEY MOUSE PARTY PRINTABLES

Download our free Mickey Mouse party printables to decorate your party in style with invitations, party circles, welcome signs, “Celebrate” banners (small and large), menu and thank you cards, water bottle labels, favor tags, bag toppers, and mini chocolate bar wrappers.

2. Wild One Safari/ Jungle Parties

For a truly memorable first birthday, transform your backyard into a magical jungle with lush greenery, animal decorations, and a safari-inspired cake. Wild One Safari / Jungle parties are one of the most popular boy 1st birthday themes right now because kids love wild animals.

💡 Party Tip: Decorate with lots of jungle stuffed animals to bring the theme to life.
Also, here’s a cute jungle garland DIY you can make to hang behind your dessert table.

Browse real jungle safari parties here.

🎉 FREE SAFARI/JUNGLE PARTY PRINTABLES

Download our FREE jungle safari party printables or FREE “jungle fun” safari party printables to decorate your party in wild style!

Wild One Safari/ Jungle 1st Birthday Parties

3. Dinosaur Parties

Looking for a fun 1st birthday theme for your baby boy? Throw a playful dinosaur adventure with dino decorations, a fossil dig activity, and a T-Rex cake for a roaring good time.

We’ve got so many cool dinosaur party ideas, to inspire you.
And don’t miss this collection of incredible dinosaur cakes from real parties on our site.

💡 Party Tip: Set up a dinosaur dig or scavenger hunt for dino bones.

Browse real dinosaur parties here.

🎉 FREE DINOSAUR PARTY PRINTABLES

We have the cutest FREE dinosaur party printables ready for you to quickly print out and assemble.

4. Lion King Parties

Kids love The Lion King with its catchy songs like ‘Hakuna Matata’ and ‘Circle of Life’ and the adorable Simba. 🦁 If your child watches it over and over, a Lion King-themed 1st birthday is the perfect choice!

💡 Party Tip: Create a savannah backdrop with jungle leaves and plush lions for fun photo ops.

Browse real Lion King Parties here.

5. Baby Shark Parties

Baby Shark-themed first birthdays have skyrocketed in popularity thanks to the song that little ones adore. 🦈 Treat your baby boy to an under-the-sea adventure with these amazing Baby Shark party ideas

💡 Party Tip: For budget-friendly decor, use lots of bright balloons to create an ocean feel.
Browse real baby shark parties here.

🎉 FREE BABY SHARK PARTY PRINTABLES

ADownload our awesome FREE Baby Shark printables including invitations, favor tags, cupcake toppers, blank food cards, welcome signs, water bottle labels, straw flags, and a “Happy Birthday” banner.

6. Farm Parties

There’s something so heartwarming about a farm-themed first birthday, filled with chickens, cows, and pigs that little ones adore. 🐷 Treat your son to a fun farm party packed with his favourite animals.

💡 Party Tip: Serve farm animal cookies and cake pops for extra cuteness.

Browse real farm birthday parties here.

7. Woodland Parties

Kids love sweet woodland animals, making this theme perfect for your son’s 1st birthday. 🦊 Check out these rustic woodland party ideas to create an adorable forest celebration.

💡 Party Tip: Use natural elements like pinecones, moss, and wood slices to decorate your dessert table.

Who can resist a cute little fox or deer?

Browse real woodland themed parties here.

8. Sesame Street Parties

Toddlers love Elmo, Cookie Monster, and Big Bird. Sesame Street parties bring these beloved characters to life for your little boy’s special day, combining fun with learning.

💡 Party Tip: Set up a “decorate your own cookie monster cookie” activity for an easy treat and craft in one.

Browse real Sesame Street parties here.

9. Toy Story Parties

Imagine your son’s toys coming to life just like in Toy Story! 🤠 Check out these fantastic Toy Story parties for some fun first birthday party ideas with Woody, Buzz, and friends.

💡 Party Tip: Create a photo booth with cowboy hats and sheriff badges for guests.

Browse real Toy Story parties here.

10. Winnie the Pooh Parties

Winnie the Pooh is a timeless classic that makes a beautiful first birthday theme. 🍯 Recreate the Hundred Acre Wood with woodland-inspired decorations and lots of honey details.

💡 Party Tip: Serve honey graham crackers or bear-shaped cookies as themed snacks.

Browse real Winnie the Pooh parties here.

11. Peter Rabbit Parties

Peter Rabbit is a much-loved character from Beatrix Potter’s classic books. 🐇 This sweet theme is perfect if your child loves the stories or movie.

💡 Party Tip: Create a veggie garden snack platter with carrot sticks, celery, and cherry tomatoes to match the theme.

Browse real Peter Rabbit parties here.

12. Teddy Bear Parties

Nothing is cuter than a teddy bear-themed first birthday. 🧸 Decorate with plenty of teddies and gift each guest their own teddy bear favor to take home.

💡 Party Tip: Set up a ‘teddy bear picnic’ area with blankets and baskets for a cozy vibe.

Browse real teddy bear parties here.

13. Paw Patrol Parties

Paw Patrol is a fantastic choice for a boy’s 1st birthday, combining fun with positive lessons. Check out our Paw patrol party ideas for inspiration. With its focus on teamwork and problem-solving, Paw Patrol is both entertaining and meaningful for little guests.

💡 Party Tip: Serve ‘puppy chow’ cereal snack mix in dog bowl-style containers for playful fun.

Take a look at these real Paw Patrol parties here.

14. Monster Parties

Get ready for a monstrously fun celebration! 👾 Decorate with bright colours, googly eyes, and silly monster faces to create a playful party atmosphere.

💡 Party Tip: Offer a ‘decorate your own monster cupcake’ activity with candy eyes and icing.

Check out all our real monster parties here.

Check out all our real monster parties here.

15. “Where the Wild Things Are“ Parties

Bring Maurice Sendak’s story to life with a “Where the Wild Things Are” themed first birthday. 👑 We’ve gathered “Where the Wild Things Are” 1st birthday parties to inspire you.

💡 Party Tip: Create a reading corner with the book and plush Wild Things characters for toddlers to enjoy.

If your child loves this book, it’s the perfect theme for his big day.Browse real “Where the Wild Things Are” parties here.

Where the Wild Things Are 1st Birthday Parties

16. “The Very Hungry Caterpillar” Parties

This classic book makes a vibrant, fun party theme for little boys. 🐛 With colourful balloons and playful decorations, it’s a great choice for celebrating your birthday boy’s first milestone.

💡 Party Tip: Serve fruit platters styled like The Very Hungry Caterpillar for a healthy themed snack

Check out these favorite “Very Hungry Caterpillar” party ideas to inspire you.

Browse real “Very Hungry Caterpillar” parties here.

The Very Hungry Caterpillar 1st Birthday Parties

👑 Royal & Classic Boy Themes

If you want a timeless and classy 1st birthday party theme for your little boy, these royal and classic options are just what you need. 👑 Whether you choose a prince party, Little Man moustache bash, or a cheeky Boss Baby celebration, these themes add a touch of sophistication and fun to his milestone day.

1. Prince Parties

Your little boy deserves nothing less than a first birthday theme fit for a prince, 👑✨ Treat him to a regal celebration with elegant gold and blue decorations, crowns, and royal touches. Prince parties are among the most popular first birthday themes for boys.

💡 Party Tip: Set up a ‘make your own crown’ craft station so guests can feel royal too.

Browse real prince parties here.

Browse real prince parties here.

🎉 FREE LITTLE PRINCE PARTY PRINTABLES

Decorate with the most elegant touches using these charming FREE prince printables.

2. Little Man Parties

A Little Man themed 1st birthday is perfect for your dapper little gentleman. 👔 Add bow ties, suspenders, and mustaches for a stylish party vibe.

💡 Party Tip: Serve milk in mini bottles with mustache straw toppers for a cute themed drink.

Browse real little man/mustache parties here.

🎉 FREE LITTLE MAN PARTY PRINTABLES

Decorate with bow ties and mustaches using these fun FREE little man party printables to complete your setup.

3. Boss Baby Parties

If you have a little boss around the house, a Boss Baby party is the perfect choice. 👶💼 Bring this theme to life with blue and black decor, briefcase treat boxes, and money chocolate coins.

Check out all the Boss Baby party ideas we’ve rounded up for you.

💡 Party Tip: Create a photo booth with baby-sized ties and glasses props for hilarious memories.

Browse real Boss Baby parties here.

4. Cowboy Parties

Saddle up for a rootin’ tootin’ cowboy first birthday! 🤠🐴 Decorate with cowboy hats, bandanas, hay bales, and horseshoes to create a fun Wild West feel.

Check out our awesome cowboy parties here!

💡 Party Tip: Set up a ‘lasso the horse’ ring toss game for toddlers.

Browse real cowboy parties here.

🚀 Adventure & Travel Themes

Bring out your little boy’s sense of adventure with these fun travel and vehicle-inspired first birthday themes. ✈️ From construction sites and airplanes to trains and nautical parties, these ideas are perfect for boys who love to explore and will keep guests smiling from start to finish.

1. Construction Parties

Get ready to build memories with a construction-themed first birthday party. 🚧👷‍♂️ Use hard hats, toy trucks, caution signs, and orange cones to turn your venue into a construction zone.

Check out our 7 must-haves for a construction birthday party.

💡 Party Tip: Serve ‘dirt cups’ (chocolate pudding with crushed cookies) in mini toy dump trucks for extra fun.

Browse real construction parties here.

2. Airplane Parties

An airplane themed first birthday is perfect for your little pilot. ✈️ Decorate with clouds, airplanes, and vintage maps for a party that’s ready to take off.

💡 Party Tip: Create boarding pass invitations and serve ‘in-flight snack boxes’ for guests.

Browse real airplane parties here.

3. Train Parties

All aboard for a train-themed first birthday! 🚂 Transform your venue into a station with train banners, conductor hats, and railway signs.

💡 Party Tip: Set up cardboard box train cars for toddlers to ride in for photos and fun.

Don’t miss our real train parties.

4. Hot Air Balloon Parties

Celebrate with a dreamy hot air balloon party. 🎈☁️ Use pastel balloons, clouds, and vintage suitcase decor for a sweet, uplifting vibe.

💡 Party Tip: Hang paper hot air balloons from the ceiling for a floating effect.

Browse real hot air balloon parties here.

5. Nautical Parties

Set sail on a nautical first birthday adventure. ⚓🚢 Decorate with anchors, stripes, and sailboats for a classic ocean-themed party.

💡 Party Tip: Serve goldfish crackers in mini boat cups for an easy themed snack.

Browse real nautical parties here.

🎉 FREE NAUTICAL PARTY PRINTABLES

Download our free “Set Sail” nautical party printables or our striped nautical party printables to add a special touch to your celebration.

6. Under The Sea Parties

Dive into an under the sea first birthday with blue and teal decorations, sea creature cutouts, and ocean treats. 🐠🌊

💡 Party Tip: Create a ‘fishing pond’ game with magnetic fish for little ones to catch.

Take a look at all our real under the sea parties here.

🏅 Sports & Activity Themes

For active little boys and sports-loving families, these 1st birthday themed party ideas are always a winning choice.⚾🦸 Celebrate with superhero adventures, sporty setups, like basketball, or classic baseball fun to keep your themed birthday partyenergetic, playful, and memorable for everyone.

1. Superhero Parties

Your little hero will love a superhero-themed first birthday. 🦸‍♂️💥 Decorate with comic backdrops, capes, and cityscape props for an action-packed celebration.

💡 Party Tip: Give each guest their own superhero mask and cape to wear.

Don’t miss all our fantastic superhero party ideas for inspiration.

Browse real superhero parties here.

🎉 FREE SUPERHERO PARTY PRINTABLES

Download our FREE superhero party printables for easy themed decor.

2. Sport Parties

Score big with a sports-themed first birthday. ⚽🏈 Choose your child’s favourite sport and decorate with balls, trophies, and jerseys for an energetic party.

💡 Party Tip: Set up mini goal posts or hoops for toddlers to play with soft balls.

Browse real sport parties here.

3. Baseball Parties

A baseball-themed first birthday is a timeless choice. ⚾ Celebrate your son’s first year by decorating your venue with mitts, bats, and balls for a classic American party vibe.

💡 Party Tip: Serve popcorn and peanuts in mini paper bags to match classic baseball party snacks.

Browse real baseball parties here.

🎪 Fun & Seasonal Themes

Add some magic or seasonal sparkle to your son’s first birthday with these fun and unique party themes. 🎪❄️ From colourful circus celebrations to dreamy Winter Wonderland parties, these ideas will create an unforgettable atmosphere your guests will love.

1. Circus Parties

Bring the fun of the circus to your son’s birthday with a circus-themed party. 🎪🤹‍♂️ Decorate with red and white stripes, circus animals, and carnival games.

Check out all our circus/carnival party ideas and circus/carnival party game ideas.

💡 Party Tip: Set up a ring toss and bean bag toss to keep little guests entertained.

Browse real circus parties here.

🎉 FREE CIRCUS/CARNIVAL PARTY PRINTABLES

Download our free circus/carnival party printables or our new collection of free retro circus/carnival party printables to complete your party styling.

2. Winter Wonderland Parties

A Winter Wonderland theme is the perfect way to celebrate a baby’s first birthday during the colder months. ❄️🐧 It’s cozy, magical, and full of charm!

What could be better than a winter one-derland 1st birthday filled with snowflakes, hot chocolate, and adorable winter animals like penguins and polar bears?

💡 Party Tip: Create ‘snow’ with cotton batting and sprinkle glitter for sparkle. Add penguin plushies and faux snowballs for a playful winter vibe.

Browse real Winter Wonderland parties here.

🎉 FREE WINTER WONDERLAND PARTY PRINTABLES

We’ve even got free Winter Wonderland party printables to download and use to decorate your beautiful party. Check them out!

Did you know we have hundreds of real boy first birthday parties added to our site from real people? See what these boy first birthdays actually look like.

And if you throw a 1st birthday party, please add it to our site (just click on the “add party+” button in our nav bar). We can’t wait to see your boy first birthday parties and share them with our community!

Most Popular Boy 1st Birthday Party Themes FAQS

What makes boy first birthday party themes so popular?

These themes have universal appeal and cater to a wide range of interests, making them popular with parents looking to create fun and memorable celebrations for their little ones.

Are these themes adaptable to different party settings?

Absolutely! They work well in all kinds of venues, from cozy living rooms to spacious outdoor areas, giving you flexibility in your planning.

What party food should I serve at a 1st birthday party?

Offer toddler-friendly finger foods like mini sandwiches, fruit slices, cheese cubes, and small soft snacks to suit the little guests’ developing tastes and motor skills.

What are fun party activities for a boy’s 1st birthday?

Keep them engaged with a soft play area, mini ball pit, or a sensory station filled with textures and colours for age-appropriate fun and stimulation.

How can I throw a little boy’s 1st birthday on a budget?

Plan a budget-friendly 1st birthday by using DIY decorations, serving simple homemade treats, and choosing a free or low-cost venue to create a special celebration without overspending.

Are these themes easy to plan for busy parents?

Yes, many of these themes have readily available party supplies and ideas online, making the planning process simple and stress-free.

How long should a 1st birthday party last?

Most 1st birthday parties last around 2 to 3 hours, which is ideal for little guests’ attention spans and energy levels.