Welcome to our comprehensive guide to Halloween costumes that start with the letter "I"! Whether you're looking to embrace a classic character, channel your inner superhero, or opt for something unique and whimsical, our selection has you covered. Dive into the world of I-conic costumes that will make your Halloween unforgettable.
1. Indiana Jones Costume
See all Indiana Jones costumes
Embody the daring archaeologist with an Indiana Jones costume. Complete with a jacket, hat, and rugged demeanor, this costume lets you step into the shoes of one of cinema's greatest adventurers. Remember to pick up a whip—but no snakes!
2. Iron Man Costume
Transform into the genius billionaire Tony Stark with an Iron Man costume. Featuring the iconic red and gold armor, this costume is perfect for aspiring Avengers. Suit up and get ready to save the day with a confident "I am Iron Man."
3. Invisible Man Costume
Add a mysterious touch to your Halloween with an Invisible Man costume. The costume includes bandages, a jacket, and accessories, as the character was portrayed in the H.G. Wells novel and Universal Pictures films. It's perfect for anyone who loves classic sci-fi and horror!
4. Inspector Gadget Costume
Adult Inspector Gadget Costume
See all Inspector Gadget costumes
Go-go-Gadget to a fantastic Halloween with an Inspector Gadget costume. This outfit, complete with a trench coat and gadget-glove hat, captures the essence of the bumbling yet lovable detective. It's a hit for fans of the classic animated series.
5. Ichigo Costume
An Ichigo Kurosaki costume from Bleach is a must for anime enthusiasts. Don the signature Soul Reaper robe (and add a massive Zanpakuto sword accessory) to channel this heroic character. It's time to protect the living and the dead in style.
6. It Costume
Scare your friends with a terrifying Pennywise costume from Stephen King's It. This horrifying clown outfit, complete with makeup and a red balloon, is sure to cause some screams. Embrace the fear by whispering, "We all float down here."
7. The Incredibles Costumes
| Plus-Size Mr. Incredible Costume | Mrs. Incredible Costume | Violet | Dash |
| Jack Jack Baby Carrier | Frozone Costume | Edna Mode | Plus-Size Syndrome |
Suit up as part of the superhero family with The Incredibles costumes. Whether you choose Mr. Incredible, Mrs. Incredible/Elastigirl, Violet, Dash, or Jack-Jack, these outfits are perfect for a powerful family ensemble. To quote Edma Mode, "It will be bold! Dramatic!"
8. Inside Out Costumes
| Joy Costume | Bing Bong Inflatable | Kids' Disgust | Anxiety Costume |
| Sadness Costume | Fear Costume | Anger Costume | Envy Headband |
Bring your emotions to life with Inside Out costumes. Dress up as Joy, Sadness, Anger, Fear, or Disgust, and showcase the colorful personalities from this beloved Pixar film. It's a fun and creative choice for friends or family groups.
9. Inflatable Costumes
| T-Rex Costume | Alien Pick Me Up Costume | Ballerina Hippo | Puffer Fish |
| Ursula Costume | Cheer Bear | Stay Puft Marshmallow Man | Kids' Kirby Costume |
Make a big impression with inflatable costumes. From dinosaurs to Disney villains, these playful and oversized outfits are guaranteed to get laughs. They're easy to wear and make moving around a breeze. And if you think that "inflatable" is cheating, then get an inflatable Ice Monster costume—that's double "I"s!
10. Ice Cream Costume
Sweeten your Halloween with an ice cream costume. This adorable and colorful outfit is perfect for anyone with a sweet tooth. It's a delightful choice that's sure to make everyone smile.
11. Iguana Costume
Stand out with an iguana costume. This reptilian outfit is unique and eye-catching, featuring scales and a long tail. It's a fantastic choice for animal lovers and those who want something truly different.
12. Ice Skater Costumes
| Fire Jumpsuit | Ice Jumpsuit |
See all Blades of Glory costumes
Glide into the party with an elegant ice skater costume. This costume captures the grace and beauty of figure skating—at least as seen in Blades of Glory. It's perfect for those who love humor in their glamor and sport.
13. Insect Costumes
| Cozy Tarantula Costume | Adult Blue Caterpillar Costume | Women's Honey Bee Costume | Black Widow Spider Costume |
| Praying Mantis Costume | Toddler Bumble Bee | Adult Green Caterpillar | Kids' Furry Spider |
Buzz into Halloween with insect costumes. From bumblebees to caterpillars to spiders, these costumes are cute and fun. (We're also inclusive about the definition of "insects"!) They're ideal for kids and adults alike, bringing a touch of nature to your celebration.
Halloween costumes that start with the letter "I" offer a diverse range of characters and styles. Whether you're aiming for heroic, scary, funny, or sweet, there's something for everyone. Explore these options to find the perfect costume to make your Halloween unforgettable.
See our other ideas for costumes by letter.
