10 Best Magical Harry Potter Costumes Kids Will Adore

Boy in wizard outfit holding mystic ball.

We hope you love our recommendations! What we suggest is selected independently by the Kidadl team. If you purchase using the buy now button we may earn a small commission. This does not influence our choices. Please note: prices are correct and items are available at the time the article was published.

'I solemnly swear I am up to no good': words that kids live by are perfectly summed up by everyone's favourite wizard, Harry Potter.

If you have keen readers at home, or simply mini Potterheads who can't get enough of the magical world of wizards and witches, it's only natural that they are already thinking about their next dress-up session or Halloween outfit. Superheroes can step aside for now, as Hogwarts School of Witchcraft and Wizardry and the world that surrounds it is filled with heroes beyond the wildest imaginations.

Mini witches and wizards need look no further, as at Kidadl we have found the best Harry Potter costume ideas for kids out there!

For more, take a look at our round ups of the best kids' books about witches and the best Harry Potter gifts for kids.

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Kidadl's Top Pick

Whilst all of the Harry Potter costumes on this list are great, this is our top pick based on its classic design at a great price.

1. Matalan Kids Harry Potter Fancy Dress Costume

Matalan Kids Harry Potter Fancy Dress Costume

For any child that simply knows they belong in Gryffindor with our heroes Harry, Ron and Hermione, this simple Matalan Harry Potter costume for kids delivers on all counts. With a hooded cape and matching Gryffindor badge, this costume is easy to pop on top of school uniform, and the addition of the Hogwarts tie, glasses and wand make the look complete. The combination of the reasonable price, along with high quality accessories makes this option one of our favourites.

Main Features

  • Price: £16
  • Age: Available in sizes from 5-12 years
  • Includes a cape, Gryffindor badge, round glasses, a tie, and a wand

Best For Versatility

2. Boden Hogwarts Crest Dress

Boden Hogwarts Crest Dress

For an adorable Potter outfit that doubles as a day dress, Boden have collaborated with the Harry Potter brand to create a whole collection of magical kids' clothing. The Hogwarts Crest Dress is easy to dress up with costume accessories such as a witch's hat, cloak and wand, but is also subtle enough to be worn on a day-to-day basis. We love the versatility of this comfy cotton dress, and kids are sure to love it too.

Main Features

  • Price: £32
  • Age: Available in sizes from 2-16 years
  • Comes in 3 different colours
  • 100% cotton

Best For Magic Lovers

3. Wow! Stuff Harry Potter Junior Invisibility Cloak

Wow! Stuff Harry Potter Junior Invisibility Cloak

This isn't just a Harry Potter cloak or costume... the team at Wow! Stuff have created a genuinely functional invisibility cloak that will have kids of all ages in awe. Inspired by the famous invisibility cloak that Harry inherits from his father in the Harry Potter books, the invisibility cloak is known to help our hero through some tricky situations. The Wow! Stuff cloak itself is intricately designed to match the one in the films, and the green lining means it works with a green screen. All you need to do is download the accompanying app to your smartphone, and kids will marvel as they can use the cloak to 'disappear'. This clever idea means that kids and parents can make videos of themselves becoming 'invisible', just like Harry Potter and his friends in the films.

Main Features

  • Price: £29.86
  • Age: 6+
  • Requires a smartphone in order to use the app
  • Winner of New York’s Toy of the Year 2020 awards
  • Detailed cloak with unique 'green-screen' lining
  • Comes with an Authentication Code to use the Invisibility Function within the Wow! Stuff app

Best For Little Witches

4. Argos Hermione Granger Costume

Argos Hermione Granger Costume

For kids who love the Harry Potter books and are inspired by the witty and studious Hermione Granger, Argos has the  perfect costume idea. This Halloween costume is also perfect for World Book Day or just dressing up at home. Complete with a Gryffindor top, skirt and a Hermione wig, all kids need to complete this look is a wand and some books to carry. It's also available in a range of age sizes, perfect for primary and preschool kids who love dressing up as their favourite witch.

Main Features

  • Price: £15
  • Age: Available in sizes from 3-12 years
  • Comes with a Gryffindor top, grey skirt and brown wig

Best For Early Years

5. Baby Muggle Romper Set

Baby Muggle Romper Set

If you're on the lookout for kids' Harry Potter costume ideas that are perfect for babies too, this adorable romper set is the perfect Potter costume for tiny muggles. Great as a gift or prop for a baby photoshoot, this outfit comes with a sleepsuit, comfy leggings and a matching hat, all in Gryffindor colours. Available in sizes from newborn to nine months, this is the perfect Harry Potter kids' costume to get little wizards involved in this magical world from birth.

Main Features

  • Price: £6.85
  • Age: Available in sizes 0-6 months and 6-9 months
  • Popper fastening for easy changing
  • Includes trousers, bodysuit and hat

Best For Under 10s

6. Smyths Toys Harry Potter Costume

Smyths Toys Harry Potter Costume

For a costume Harry Potter himself would envy, Smyths Toys has created an all-inclusive option for Halloween and beyond. Again, this option looks great added on top of a school uniform, as the robe, wand and glasses complete the look. You could even take it one step further with a drawn-on lightning bolt scar and broomstick. Suitable for Potter fans under 10 and suitable for both girls and boys, this high quality unisex option ticks all the boxes.

Main Features

  • Price: £16.99
  • Age: 5-8
  • Comes with a wand, glasses and hooded robe

Best For Quidditch Enthusiasts

7. Rubie's Official Harry Potter Deluxe Quidditch Robe

Rubie's Official Harry Potter Deluxe Quidditch Robe

If you know a young Quidditch fan who knows the difference between their Quaffle and Golden Snitch, this fantastic Harry Potter Quidditch robe comes with all the trimmings. Perfect for a Hogwarts Seeker-in-training, this costume Harry Potter himself would approve of comes emblazoned with the Gryffindor crest on the front, with lace-up detail that looks every bit the part. Pair with a broomstick and a lightning scar and you're well on your way to Quidditch glory!

Main Features

  • Price: £18.44
  • Age: Available in sizes 5-8 years and 8-10 years

Best For Wizards On A Budget

8. Zac's Alter Ego School Fancy Dress Set

Zac's Alter Ego School Fancy Dress Set

For a simple Harry Potter look that's perfect for World Book Day, a Halloween costume or Harry Potter-themed day out, this accessory pack is a fantastic option for kids and parents alike. Available in a variety of colours depending on your Hogwarts house allegiance, all kids need to do is pair this with their school uniform, and add any other accessory such as a cloak, broomstick or lightning scar (or all three!) to get the full effect. Once you have this pack, it can be doubled up as a Halloween costume, or even as props for a fun family photoshoot.

Main Features

  • Price: £9.99
  • Available in multiple colours
  • Includes a scarf, wand and round glasses

Best For Dumbledore Fans

9. Kids Wizard Outfit With Beard

Kids Wizard Outfit With Beard

Harry Potter costumes are all the rage, but if your child is more of an Albus than a Ron, this adorable costume is fit for any little wizard. With a beard and wand included with the outfit, kids could even add some classic Dumbledore half-moon glasses to get the full Hogwarts Headmaster effect. If your child is wise beyond their years, and knows a thing or two about magic, this costume could be the one for them.

Main Features

  • Price: £15.99
  • Age: Available in sizes from 5-12 years
  • Includes a robe, hat, beard and wand

Best For Little Hufflepuffs

10. Hongfago 5 Pcs Set Hufflepuff Robe

Hongfago 5 Pcs Set Hufflepuff Robe

While Gryffindor Harry Potter costumes seem all the rage, perhaps your child feels more affinity with a different house. If you have a little Hufflepuff on your hands, why not try out this robe set, complete with Hufflepuff colours and all the accessories? Like most of our Harry Potter costumes, kids can easily add this on top of their regular school uniform clothes, and simply replace the tie and add the cloak and scarf! Plus, this set is also available in a Ravenclaw design if your child is a Luna Lovegood or Cho Chang fan.

Main Features

  • Price: £21.99
  • Includes cloak, glasses, tie, wand and scarf

Kidadl Best Buys selects the top parent-recommended products across the web for families of all ages. If you liked our suggestions for best magical Harry Potter costumes then why not take a look at the best kids Halloween costumes, or for something different take a look at the best STEM toys for toddlers to tweens!



At Kidadl we pride ourselves on offering families original ideas to make the most of time spent together at home or out and about, wherever you are in the world. We strive to recommend the very best things that are suggested by our community and are things we would do ourselves - our aim is to be the trusted friend to parents.

We try our very best, but cannot guarantee perfection. We will always aim to give you accurate information at the date of publication - however, information does change, so it’s important you do your own research, double-check and make the decision that is right for your family.

Kidadl provides inspiration to entertain and educate your children. We recognise that not all activities and ideas are appropriate and suitable for all children and families or in all circumstances. Our recommended activities are based on age but these are a guide. We recommend that these ideas are used as inspiration, that ideas are undertaken with appropriate adult supervision, and that each adult uses their own discretion and knowledge of their children to consider the safety and suitability.

Kidadl cannot accept liability for the execution of these ideas, and parental supervision is advised at all times, as safety is paramount. Anyone using the information provided by Kidadl does so at their own risk and we can not accept liability if things go wrong.

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