Costumes That Start With U [Costume Guide]

by |September 13, 2024
Categories: Costume Guides

Costumes That Start With U

In some cases, it can be helpful to know what words or costumes start with which letters. Maybe you want to find a unique group costume idea, or you're attending or hosting a letter party where guests dress in costumes starting with a particular letter. Should you be tasked with finding a costume that starts with the letter "U", you've come to the right place! Follow along as we share our best letter "U" costume ideas.

 

1. Ursula Costume

Ursula Costume

Adult Plus Size Ursula Costume

Shop all Ursula Costumes

Given the chance, what poor, unfortunate soul would miss the opportunity to dress as Ursula? Ursula is a great costume idea for any occasion, whether it's Halloween, Comic Con, or a themed costume party. There are many great costume choices for kids and adults, from infants to plus sizes. You can find accurate character costumes, sexy costumes, or anything that fits your style!

 

2. Unicorn Costume

Kids' Rainbow Unicorn Costume

Kids' Rainbow Unicorn Costume

Shop all Unicorn Costumes

Transform into your favorite mythical creature with a unicorn costume! Kids and adults love the magical unicorn, and you'll be pleased to know that everyone can find a unicorn costume they can wear. You can also craft your own costume with a unicorn horn accessory! There's a lot of wiggle room here to DIY the unicorn costume of your dreams.

 

3. Uncle Sam Costume

Uncle Sam Costume

Adult Uncle Sam Costume

Shop all Uncle Sam Costumes

Do you love Halloween costumes that can be used for multiple occasions? Get the best bang for your buck with an Uncle Sam costume! Wear it for Halloween, your letter party, costume runs, or any other occasion, and then hang onto it for the 4th of July! We want you to have a good time with this Uncle Sam costume.

 

4. Undertaker Costume

Undertaker Costume

Adult Undertaker Costume

Shop all WWE Costumes

Do you love sports? An Undertaker costume could be just what you need. This iconic WWE wrestler is regarded as one of the greatest of all time and is in the WWE Hall of Fame. The most important pieces for an Undertaker costume are a long, black trench coat and his black wide-brimmed hat. If you can find a way to play "Rest in Peace" as you arrive at the party, that would be epic!

 

5. Umbreon Costume

Kids' Umbreon Costume

Child Umbreon Costume

Shop all Pokémon Costumes

I choose you! There are more than one thousand Pokémon now, including quite a few that start with the letter "U". Unown, Ursaring, Uxie—but Umbreon has to be our favorite! This dark-type Eeveelution is a popular choice, and it has one of the best shiny variants in the game. Wear it to Halloween, and save this costume for your next gaming convention! Just keep your eyes peeled for flying Pokéballs.

 

6. UFO Costume

Adult Inflatable UFO Costume

Adult Inflatable UFO Costume

Shop all Alien Costumes

Do you love reading reports of UFO sightings and other weird news? Turn your interests into your next Halloween costume idea! This inflatable UFO costume is guaranteed to get some laughs as it's pretty silly, and you can even dress as a Martian if you'd like. Your next costume party will be out of this world!

  

7. Uravity Costume

Uravity Costume

Adult Uravity Costume

Shop all My Hero Academia Costumes

Uravity is the superhero name for Ochaco Uraraka, a superhero student at U.A. High School. She has the zero gravity quirk, which allows her to manipulate the gravity of things she can touch. While wearing this superhero costume won't give you any special powers, you'll certainly look the part! Find a few friends to dress as other My Hero Academia characters for a super-cool group costume idea.

 

8. Umpire Costume

Vintage Umpire Costume

Adult Vintage Umpire Costume

Shop all Baseball Costumes

Play ball! This vintage umpire costume is another great idea for sports fans. Wear your own suit and add the umpire kit with the chest padding, hat, and mask, and you have a unique costume for Halloween. Sprinkle some umpire language in your conversation, and you'll get a few laughs!

 

9. Usagi Tsukino Costume

Usagi Tsukino Costume

Adult Usagi Tsukino Costume

Shop all Sailor Moon Costumes

Usagi Tsukino is Sailor Moon's civilian name. She usually wears a white and navy blue sailor-looking outfit when she's not saving the universe. Of course, you can wear a Sailor Moon costume if you prefer her sailor scout look. As a bonus, you have every excuse to raid the snack table at the party.

 

10. UPS Costume

Toddler UPS Costume

Toddler UPS Costume

Shop all Mail Carrier Costumes

Everyone's ordering delivery these days, so what about a UPS worker costume? The jumpsuit and hat are ready to go, and you can probably find a cardboard box if you need a costume accessory. It's great for Halloween parties, but little kids may want to hang onto their costumes to play pretend!

 

We'd find it unbelievable if you couldn't find a letter "U" costume idea to wear. Which costume that starts with "U" do you like the best? Did we miss any great options? If you'd like to see other letter party costume ideas, take a peek at our other costumes by letter!

Angela Poch
Angela Poch

Angela Poch is an Inbound Marketing Specialist and Resident Crazy Cat Lady at HalloweenCostumes.com, where she is an assistant editor and covers tutorials, crafting and pop culture. Angela has created costumes and props for Halloween events, conventions and Renaissance festivals.

Some of her favorite costumes include 90s Rogue, a custom Jedi, warrior elf, and some nameless Renaissance pirate. (She’s still figuring out how to make a Jedi light-chakram.) You can find her on Twitter @AngelaPoch1 or her cats on Instagram @stardustnebulanova.


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