Throw a classy adult birthday party that’ll be nothing but fun for all your guests. Because not every adult birthday party needs to be raucous or juvenile! Check out these 12 classy birthday party ideas for adults, and then feel free to modify them if needed to fit the birthday gal or guy.

1. For a classy 40th birthday celebration for your favorite gal, you can’t go wrong with an elegant pink, gold & black theme. Everything from the decorations to desserts ties in to the color scheme.

2. Balloons aren’t just for a kids’ birthday party. You can utilize them for an adult party as well. How about sticking them to the wall for a 21st birthday champagne party?

3. Popcorn is never a bad idea at an adult birthday party. Just make it classy by creating some party popcorn. Only three ingredients are needed for this deliciousness: popped popcorn, white chocolate, and your choice of colored sprinkles.

4. Have a food truck cater your adult birthday party! The food options are open wide. Just find a truck that features the type of food you’re looking to serve.

5. No one has to know the exact age of the birthday gal. Use a creative and classy “Lost Count” cake topper instead. This is a great idea!

6. A New England clam bake is a classy {and delicious!} way to celebrate an adult birthday.

7. A DIY photo booth lets your guests mark the event by taking the selfies they’re probably going to take anyway! This one looks more involved than it is, but it’s actually pretty easy to put together.

8. The best thing about this neon and neutral birthday party theme is that you can buy the bags right from your local supermarket. Or buy them in bulk at Amazon!

9. An office theme is fun, either in or out of the office! Just use office supplies for the decor. A file folder decorated with masking tape in bold colors makes a fun card for everyone to sign.

10. I love this idea! Showcase the guest of honor with a wall of black and white photos from their life thus far.

11. Classy doesn’t have to mean expensive. Throw a totally classy birthday dinner party. All you need are supplies from Dollar Tree to pull it off!

12. Have all your guests come dressed as their favorite rock star from years past. This will be a rocking party no one will soon forget!

Credit for the birthday party ideas & inspiration for this post goes to the following sources:

A Blissful Nest Adult Birthday Party Ideas

Pinterest balloon champagne spill

She Wears Many Hats Party Popcorn recipe

Pop Sugar food truck catering tips

A Subtle Revelry Lost Count cake topper idea

Pinterest New England clam bake

Oh Happy Day DIY sequin photo booth

Martha Stewart neon & neutrals theme

Martha Stewart Office Supply party

Martha Stewart Picture Perfect Birthday Party

Creative Life of a Glam Wife Dollar Store Dinner Party

Birthday Inspire Rock & Roll party