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'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!
Our Top Choice
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.
- 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
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.
- Price: £32
- Age: Available in sizes from 2-16 years
- Comes in 3 different colours
- 100% cotton
Best For Magic Lovers
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.
- 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
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.
- Price: £15
- Age: Available in sizes from 3-12 years
- Comes with a Gryffindor top, grey skirt and brown wig
Best For Early Years
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.
- 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
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.
- Price: £16.99
- Age: 5-8
- Comes with a wand, glasses and hooded robe
Best For Quidditch Enthusiasts
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!
- Price: £18.44
- Age: Available in sizes 5-8 years and 8-10 years
Best For Wizards On A Budget
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.
- Price: £9.99
- Available in multiple colours
- Includes a scarf, wand and round glasses
Best For Dumbledore Fans
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.
- Price: £15.99
- Age: Available in sizes from 5-12 years
- Includes a robe, hat, beard and wand
Best For Little Hufflepuffs
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.
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!
- Price: £21.99
- Includes cloak, glasses, tie, wand and scarf
Sarah was born and raised in the North West. Her love of art and culture brought her to study in London and she never left! She can be found teaching painting classes, trying out new recipes, or drawing with a cup of tea.