26 first birthday party theme ideas

The first year has flown by, and now to choose the perfect theme to celebrate! Even though they’re too little to remember, their sweet faces will light up when everyone sings “happy birthday” – and they will be enchanted with the balloons! My little boy loves to look at pictures from his first birthday party to see all the fun car & truck decorations, and all his favorite people gathered around eating the wheel themed desserts.

This list will help you find just the right theme for your special day – with all the “one” and “first” birthday ideas you could dream of! If you see something you love & want help recreating the look, visit Style My Party – select the package that fits your need, fill out the form, & I’ll send you a customized party design to take the stress out of planning your party!

Here are 26 first birthday ideas for your little guy or girl,

1. one in a melon

a sweet summer birthday party idea, perfect for a pool party

2. hole in one

for the future little golf buddy in the family

3. wild one (animals)

so many fun ways to use this theme – safari, jungle, wild horses, etc!

4. wild one (flowers)

wild and feminine, currently one of the most popular baby girl party themes

5. first trip around the sun

a party for your little astronaut in outer space, a boho sunshine celebration, or go for more of a 70s vibe

6. fast one

little boys love their fast cars & race tracks, am I right?!

7. ONEderful

“isn’t she lovely, isn’t she ONEderful” or “Mr. ONEderful” – a simple theme idea, great for keeping decor minimal if you prefer a less-is-more-celebration

8. the big one

how adorable is this surf theme for either boys or girls! perfect for beach or pool-side events

9. first rodeo

a rodeo theme is so much fun, and how cute are little kids in cowboy/cowgirl hats?!

10. Winter ONEderland

a sweet winter birthday theme, just add dreamy snow-like decor & a hot coco bar

11. berry first birthday

cheerful & sweet, this party theme is sure to please! this adorable first birthday idea calls for gingham and strawberry shortcake

12. fairy first birthday

a whimsical garden setting – the more flowers, toadstools & fairy wings the better!

13. groovy one

funky & fun, this theme is a popular favorite!

14. first bee-day

an adorable, cheery theme for your summer babe

15. sweet one

pretty pastels & dessert themed decor everyone will love

16. first lap

another take on a race car themed party. add a fun “pit stop” & all the wheel shaped food

17. ONEder the Sea

sea creatures & seashells make this theme colorful & versatile

18. bear-y first birthday

cozy teddy bear theme, or bears in the woods for your little nature lover

19. alice in ONEderland

a funky & bright vintage tea party, a fun one to go all out with the details!

20. first down

an easy favorite for football families & football season birthdays

21. one happy camper

fun for either an indoor or outdoor party. kids will love playing in tents, s’mores, & woodland critter decor

22. top one

adorable red, white & blue theme for the Top Gun fans out there. or if you just want a good reason to put aviators on your little babe!

23. come one, come all to the carnival

vibrant stripes, carnival animals, carnival snacks, & party hats for all!

24. one happy dude

alternative & just plain cool! for the laid back, happy little dudes

25. one silly goose

I think this may be my favorite, since I’m always calling my little boy a “silly goose’!

26. one cute chick

a sweet theme for a cheerful, springtime party