18 best Harry Potter costumes and ideas, perfect for Halloween

We earn a commission for products purchased through some links in this article.

Harry Potter Hermione Granger costume

Women's deluxe Hermione Granger costume, £104, Halloween Costumes

BUY NOW

Here's the classic Hermione get-up for folks who wanna say "it's wingardium levi-o-sa, not wingardium levio-sarrr" all night long.

2

Delights Harry Potter Bellatrix LeStrange costume

Ooooo how sexy is this Belatrix get-up?

3

MagicBox Harry Potter Mad Eye Moody costume

Ah yes, Mad Eye Moody is perfect for the all-out costume party attendee.

Advertisement - Continue Reading Below

4

Harry Potter Luna Lovegood costume

Chances are you already have a dress like these deep in your wardrobe, all you need is some snazzy shades and a copy of the most recent Quibbler and you're good to go as Luna! 

5

Rubie´s Harry Potter Dobby costume mask

Lol literally put this one with anything and people will still applaud the effort.

6

MagicBox Harry Potter Sybill Trelawney costume

If the kooky soul of Sybill Trelawney is more your vibe, how about this incred costume? Crystal ball, optional

Advertisement - Continue Reading Below

7

MagicBox Harry Potter Professor McGonagall costume

Anyone who wears this to a party is instantly my favourite person.

8

Factory Entertainment Harry Potter Nimbus 2000 broomstick costume accessory

Add some extra flare to your makeshift Quidditch robes with the help of the Nimbus 2000.

9

Rubie´s Harry Potter Bellatrix Lestrange Death Eater costume

Fancy going a little scarier? How about this spooky Belatrix Death Eater costume?

Advertisement - Continue Reading Below

10

Rubie's Harry Potter Gryffindor costume

Now 17% Off

Aaaaand here's an option for folks who want a uniform option that feels a little cuter.

11

Rubie´s Harry Potter Golden Snitch Quidditch costume accessory

This is the only bling you need for the night tbh.

12

Harry Potter Fleur Delacour costume

YAS FOR FLEUR DELACOUR. Ugh, this is so damn pretty.

Advertisement - Continue Reading Below

13

Dahuy Harry Potter Slytherin costume

The cape is absolutely fab. The same cannot be said for the amount of 'mind if I Slytherin?' one-liners you might hear on the night.

14

Charades Harry Potter Dumbledore costume

Heck yes. This Dumbledore outfit is a close second to McGonagall for 'bossest costume'.

15

Magic Box Harry Potter Moaning Myrtle costume

Forget about touching up your smudged eye makeup with the Moaning Myrtle costume. 

Advertisement - Continue Reading Below

16

Rubie´s Harry Potter Voldemort costume

This is perfect if you wanna be 'that guy' and freak the crap out of everyone at the party. 

17

Harry Potter Hermione Granger Yule dress costume

Oooooo pretty!

18

CL COSTUMES Harry Potter Hagrid costume

Lolololol I #cant.

Advertisement - Continue Reading Below

19

Rubie´s Harry Potter Dementor costume

The best part about this costume? You don't even have to bother with doing your hair or makeup.

20

MagicBox Harry Potter Sorting Hat costume

Wreak havoc all night by putting this one guests' heads and telling them they got Hufflepuff olololol. 

Jess Edwards is the Editor of Cosmopolitan.com/UK, overseeing all things digital.

Natasha Harding is the former Fashion Editor (Digital & Print) at Cosmopolitan & Women's Health UK. Working in fashion journalism for just under ten years, she’s covered over 30 international fashion weeks, hundreds of red carpets and religiously scours the runway every season to create the brand’s bi-annual trend report. Joining Cosmopolitan back in Australia, Natasha moved to London a few years ago and is now the resident expert for celebrity style and industry news, fashion features and e-commerce. Follow Natasha on Instagram  

Watch Next

Advertisement - Continue Reading Below

Advertisement - Continue Reading Below

Advertisement - Continue Reading Below

ncG1vNJzZmivp6x7pLvSpqapp5yewaK6jZympmeloHynrdKhoKimX6jBurjEaJ5qamBmf3WDk2ifmqqirnqxu9OtnKtlk6TAtcHMnqpo