When it comes to picking out Halloween costumes, you really never can go wrong with characters from the Wizarding World! JK Rowlings’ masterpiece series was populated with so many outstanding characters that you could go with a Harry Potter Halloween theme for the rest of your life and never run out of new ideas.

20 Brilliant Harry Potter Halloween Costumes

Below, you’ll find a good mix of inexpensive Harry Potter Halloween costumes that you can wear throughout the season to all those parties as well as some high-quality cosplay costumes that’ll last for many years to come. The hardest part will be choosing which one to go with this year!

FYI: this post contains affiliate links, which means if you make a purchase through them I get a tiny kickback at no extra charge to you. Thanks!

1. Hermione Granger Gryffindor Uniform Cosplay Costume

Super cute and high-quality, this Hermione cosplay costume is made out of real cotton and uniform cloth. It comes in sizes from XS to XXXL and includes everything you see: Badge, Robe, Shirt, Skirt, Sweater, Tie.

2. Gryffindor Robe

You don’t need to wait for your Hogwarts acceptance letter and a turn beneath the Sorting Hat to become a Gryffindor, you just need this cosplay-quality robe. Made with cotton & poly to your measurements, it’ll last throughout your entire 7 years at Hogwarts!

3. Hufflepuff Robe

Prefer to keep company with the likes of Cedric Diggory, Newt Scamander, and “Don’t Call Me Nymphadora” Tonks? Grab yourself a Hufflepuff cosplay robe! Like the Gryffindor robe, it comes in all sizes imaginable and is made to your measurements.

4. Ravenclaw Robe

While Gryffindor is my favorite house because it’s where the Sorting Hat put our favorite trio of heroes, Ravenclaw is a very close second. Emulate the unique brand of wit and wisdom found in characters like Luna Lovegood and Professor Trelawny with this high-quality Ravenclaw robe.

5. Slytherin Robe

While Slytherin produced many of the worst wizards of all time (including the #1 big bad), it also gave us brave (albeit unbeknownst to us until much later) Snape and sharp-witted Slughorn. So, if the Sorting Hat pops you into the snake-whisperer’s house, wear your robe with pride!

6. Voldemort Mask

On the other hand, if you really do want to be just like the biggest bad to ever come out of Slytherin, this creepy mask will do the trick! At under $20, it’s a steal compared to the other cosplay costumes so far. Of course, it only comes with the mask. You’ll need of Voldemort’s garb elsewhere.

7. Hagrid Cosplay Costume

Let’s move on from the greatest evil to the literal biggest force of good! The Wizarding World wouldn’t be the same without the lovable half giant! This costume is pricey, but it comes with everything you need, including a waistcoat, overcoat, shirt, pants, belt.

8. Mad Eye Moody Cosplay Costume

Another high-quality cosplay costume made to your measurements, this one comes with everything you need to play Mad Eye…minus the magical spinning eye, of course! It’s made in high quality faux suede and pleather, and the pockets are totally functional.

9. Viktor Krum Cosplay Costume

If you dream of emulating the stoic Bulgarian Quidditch Seeker that went from one of Ron’s favorite players to least-favorite people once Hermione got involved, grab this stunning cosplay costume! The hefty price tag is justified once you realize that it’s tailor made to your own measurements. This isn’t a cheap-o Halloween costume that you’ll wear once and discard, it’s made to last!

If you just need something that will last throughout one Halloween season versus cosplay costumes designed to last a lifetime, these next Harry Potter Halloween costumes are a bit more budget-friendly.

10. Harry Potter Hogwarts Robe for Infants

How freaking cute is this infant Harry Potter costume? The one-size-fits-most-babies robe features the Hogwarts school crest rather than a single House crest, because obviously your baby is way too young to be sorted!

11. Rubie’s Harry Potter Dress-Up Trunk

The officially licensed dress-up trunk from Rubies comes with a everything your tiny wizard needs to transform into Harry, including a wand and glasses (not just a wire frame, but actual fake glasses). While it’s not cosplay-quality, it will last few quite a few dress-up play sessions.

12.Harry Potter Quidditch Robe

While we mere muggles can’t quite make brooms fly yet, our littlest wanna-be wizards can at least emulate their favorite Quidditch player with this cute robe! It comes in three sizes. Glasses aren’t included, though.

13. Dementor Costume for Kids

The officially licensed Dementor costume includes almost everything you need to suck the joy out of a room, including the mask, robe and chest piece. Add some black pants, gloves and boots and you’re good to go!

14. Death Eater Costume for Kids

Sticking with the nasties of the Wizarding World, this kids’ costume is modeled after Bellatrix’s Death Eater garb and comes with the hooded dress, cumberbund and mask.

15. Hedwig The Owl Costume for Toddlers

Perhaps the cutest of all the Harry Potter Halloween costumes, this one transforms your darling toddler into the greatest owl in all of Wizarding World history: Hedwig! The super soft and warm jumpsuit has an attached Hedwig hood,  wings on outer sides of sleeves, foot covers with talons and faux leather collar representing Gryffindor. It’s also available in small and medium for slightly older children.

Out of all of these Harry Potter Halloween costumes, I really love the ones from CosplaySky.com. Yes, they’re a lot more expensive than the Rubies’ costumes on Amazon, but they’re worth it if you want something that will last longer than one season!

Last update on 2025-01-22 / Affiliate links / Images from Amazon Product Advertising API