This blog post is about 21st birthday outfit ideas.

So your 21st birthday is coming up?! First of all, HAPPY BIRTHDAY!
And secondly, we need to find you some 21st birthday outfit ideas you’ll love.
Whether you’re throwing a huge party, going out on the town, or just hanging out with a few friends, you deserve to look and feel your best on your 21st birthday!
Let’s get started.
Note: This site contains affiliate links, view our disclaimer for more information.
21ST BIRTHDAY OUTFIT IDEAS
Table of Contents
What color should I wear for my 21st birthday?
It’s YOUR birthday, so wear whatever you want! What’s most important is that you feel confident and excited.
If you’re looking for classic birthday colors to wear, opt for a champagne, black, white, or a bold color you love.
21st Birthday Dresses
1. Sweet but spicy halter cutout dress
This cutout dress is the perfect blend of sexy and classy. It would make such a cute outfit for going out!
2. Hailees Lace Strapless Mini Dress
This lace red dress is GORGEOUS! I think this would be so cute for a house party or dinner out.
3. Bombshell mini dress
If you want something classic and simple that is sure to make you look stunning, get this Princess Polly dress! It comes in several color options so if you don’t want to wear red, there are other colors to choose from.
4. Landon mini dress
I’m obsessed with the neckline of this dress. It would be so cute for a summer party or night out for drinks!f
5. Strappy open back satin dress
Satin dresses will always be classy, in my opinion. You can easily dress this outfit up even more with heels and jewelry!
6. Lace-up Skater dress
This lace-up dress is cute, girly, and fun all in one. If I wore this I would definitely curl my hair and add a cute necklace!
7. Cutout bodycon dress
You can never go wrong with a bodycon dress. Plus, the cutouts take it to the next level!
8. Champagne fringe bodycon dress
Champagne is such a classic birthday color to wear. This champagne fringe dress shows that you’re ready to party and celebrate!
9. Ashwood lace sleeve dress
The lace sleeves on this dress are GORGEOUS.
Plus, the vibe it gives is the perfect blend of sexy and classy.
10. Blooms mini dress
If you’re having a cute backyard party or picnic, a girly floral dress like this is the way to go! You’ll absolutely love your photos in this dress.
11. GLOW STATE MINI DRESS
This dress has such a pretty texture and color. Plus, the asymmetrical neckline/shoulders make it so unique!
12. MESH HALTER MINI DRESS
This mesh dress is so unique and fun! It’s the perfect going out dress or a great dress if you’re throwing a big house party.
Two Piece Sets for 21st Birthday
13. HIGH SHINE SEQUIN SET
You’re the birthday girl, so you get to shine! Wear this sequin set if you really want to stand out and show that you’re celebrating.
14. MID-RISE MINI SKIRT SET
This mini skirt set is stunning! I love the shimmer even though it’s still a classic black.
15. SQUARE NECK CORSET TOP
If you’re looking for more casual 21st birthday outfit ideas, this corset top set is a great way to dress up without looking super dressed-up, if you know what I mean.
16. BODYCON RUFFLE MINI SKIRT
The ruffled detailing on this skirt is so sweet! Plus, I love the tie-up top; it’s so pretty.
17. SUNSHINE CROP TOP SET
The subtle floral design of this two-piece set is so unique! It’s the perfect blend of being girly and fun while still being neutral overall.
18. LILAC SET
If you love a bold floral pattern, then you’ll really love this lilac set! Plus, if you like the look of a longer skirt, all you have to do is pair this one in heels and it’ll look super classy.
19. TWEED SKIRT SET
This tweed skirt set is perfect for you if your style is neutral, put-together, and a little more mature. It’s so classy while still looking young and fun!
20. PERFECT EXECUTION CROP TOP SET
If you’re a fan of brighter colors, this bright crop top set is a great option for you! This would be so perfect for a summer party, beach day, or even a night out on the town.
21. DUSTY FLOWER CROCHET SET
This dusty pink crochet set is gorgeous! Crochet sets are super trendy right now.
Plus, this would make a super cute swimsuit cover-up if you’re doing a pool party or beach day!
Birthday Jumpsuits and Rompers
22. BLACK SHEER LACE JUMPSUIT
This black jumpsuit is powerful!! The lace top makes it a little sexier while keeping that classic, timeless feel.
23. MESH WIDE-LEG JUMPSUIT
I also love this white jumpsuit! The corset top is stunning.
24. FLOWERS ON THE MOON ROMPER
This floral romper would be so cute at an outdoor party! I love that it has a white base, so you’ll stand out as the birthday girl while wearing something unique.
25. CLASSY ROMPER
You can’t go wrong with a solid color, flowy romper. It’s classic and timeless, no matter what kind of party you’re having!
26. CHIC ESCAPES ROMPER
The neckline of this romper is so flattering. You can easily pair this with shoes you love, makeup you feel confident in, and some jewelry to seal the whole look!
27. HIGH NECK SLEEVELESS ROMPER
This sleeveless romper is classy! And, it’s a little more of a casual vibe. Depending on the shoes and jewelry you wear, you can either dress it up or down.
28. CREAM FLORAL CORSET SKORT SET
This cream floral skort romper is gorgeous. You could easily wear this with sneakers if you want to be comfy, or dress it up with sandals or heels.
I hope you found some curtains that you love in this post!
This post was all about curtain ideas for bedroom.
OTHER POST'S YOU MAY LIKE...

Free download
FIRST APARTMENT
CHECKLIST
YAY!
Your FREE first apartment checklist is doing it's way to your email inbox!