Make your Harry Potter-themed party even more magical with our fun and sexy Hermione Granger look

Adult Hermione (Harry Potter) costume

How To Dress Like Hermione

This is everyone’s favorite magical geek like you’ve never seen her before. Let’s be honest, more than a few of us developed a serious crush on Hermione Granger (and Emma Watson) throughout our formative years reading and watching Harry Potter. Now it’s time to make those fantasies a reality!

Hogwarts is officially all grown up with our steamy DIY Hermione cosplay. From representing House Gryffindor to making your partner blush with the sexiest schoolgirl outfit possible, we show you everything you need!


Sexy Hermione DIY costume

1. SHIRT – Who doesn’t love a sexy schoolgirl cosplay? Throw in a little magic and you have a recipe for success. Start with a cropped and collared button-down.

2. SKIRT – Add a pleated mini skirt in black or dark gray to complete that naughty schoolgirl look.

3. HEELS – Representing those house colors in style, we have a saucy pair of Gryffindor-inspired red heels.

4. FISHNETS – Ramp up the heat with a matching set of red fishnet stockings. These might be enough to get you expelled from Hogwarts but we’re sure the muggles won’t be complaining!

5. TIE – Because you’re a good student, add your best Gryffindor tie, complete with house colors and insignia. 

6. SCARF – If you need to wrap up warm for those cool Halloween nights, you can’t go wrong with an authentic Gryffindor scarf.

7. WAND – Finally, don’t forget to include your official Hermione Granger wand and just like that, you are looking truly spellbinding!



Hermione Granger is a talented wizard born to non-magical ‘muggle’ parents. After receiving an invitation to Hogwarts, she is sorted into house Gryffindor along with her friends Harry Potter and Ron Weasley.

Once at Hogwarts, Hermione excels academically and quickly becomes one of the most gifted witches in her class. In Harry Potter and the Prisoner of Azkaban, Hermione is gifted a Time-Turner that she uses to attend multiple classes simultaneously and improve her abilities even further.

Following her time at Hogwarts, Hermione works for the Ministry of Magic in the Department for the Regulation and Control of Magical Creatures. She marries Ron Weasley and has two children, Rose and Hugo, who feature in the epilogue of Harry Potter and the Deathly Hallows.

Hermione as a cosplay might have been done to death but, as one of our sexy costume ideas, this is the beloved childhood character like you’ve never seen her before!

More DIY 'Harry Potter' Costume Ideas

Of course, Hermione Granger is one of the most done Harry Potter costumes of all time. That’s why we wanted to do things a little differently. This fun and sexy Harry Potter outfit is for all of us adults who grew up reading J.K. Rowling’s books. Now it’s time to make a fellow wizard or witch’s dreams come true!

Still looking for more inspiration? Check out our favorite sexy Harry Potter costume ideas that guided us while making our outfit guide. And for more magical goodness, be sure to check out the rest of our Female Harry Potter Cosplay Collection!