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Kids’ Halloween Costumes

Our kids Halloween costumes are made for trick-or-treating, school discos and spooky sleepovers. Expect little witches, glow-in-the-dark skeletons, grim reapers, zombie cheerleaders and footballers, plus a few cheeky inflatables for kids who’d rather make people laugh than jump.

Most children’s outfits start from around £10, and you can add a bucket, wand or scythe from our fancy dress props. Dressing up yourself too? Have a look at our women’s Halloween costumes.

Buying guide ↓ Women’s Halloween Costumes Men’s Halloween Costumes Couples Halloween Costumes Kids’ Fancy Dress Girls’ Fancy Dress
Kids in costumes trick or treating at Halloween
✦ Links to trusted UK retailers ✦ Sizes for adults and kids ✦ Prices checked by the retailer

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Buying guide

Choosing kids Halloween costumes they’ll actually keep on

Children have strong opinions about costumes, and even stronger opinions about itchy ones. The best picks are the ones they can run around in, sit down in and pull a coat over without a fuss. Before you buy, think about where they’ll wear it. A school party is usually indoors and warm, while trick-or-treating in late October can be properly chilly.

Most of our childrens Halloween costumes come from familiar brands like Smiffys, Rubies, Morph and Wicked Costumes. They’re designed for a few wears, so the fabric is light. That’s handy for growing kids, but plan for a long-sleeved top and leggings underneath on cold nights.

  • Witches: a classic for girls’ Halloween costumes, from toddler sizes up. Green, purple and pink-and-black versions all go down well.
  • Skeletons: glow-in-the-dark skeleton suits are great for boys and girls, and easy to spot on a dark street.
  • Grim reapers: a hooded robe is a favourite for boys’ Halloween costumes. Some come with a scythe included.
  • Zombies: zombie footballers, cheerleaders and clowns let older kids get gory with a bit of face paint.
  • Inflatables: an inflatable alien is silly, warm and always gets a laugh.
CostumeGood for agesParent tip
WitchToddlers upwardsCheck the dress length so they don’t trip on steps
Glow skeletonAll agesCharge the glow in bright light before heading out
Grim reaperAround 5 and upMake sure the hood doesn’t block their view
ZombieOlder kidsPatch test face paint a day before
InflatableKids happy with a fan unitPack spare batteries and mind doorways

Sizing and safety tips for children’s costumes

Kids’ fancy dress is usually sized by age, but brands vary a lot and many run small. Check the height and chest measurements on the retailer’s listing, compare them with our costume size guide, and size up if your child is tall for their age or between sizes. A bit of extra room also means a jumper fits underneath.

  • Keep robes and dresses off the floor to avoid trips.
  • Choose masks with big eye holes, or swap them for face paint from our fancy dress make-up range.
  • Pair dark costumes with something reflective or a torch.
  • Check the label for safety information and keep costumes away from candles and pumpkins.

Finish the look and find more

Hats, wigs and masks make a basic outfit look far more impressive. Browse our fancy dress hats and wigs for easy extras. For year-round dressing up, there’s our full kids’ fancy dress range, plus dedicated girls’ costumes and boys’ costumes. Matching the grown-ups? See men’s Halloween costumes or the main Halloween shop.

In this guide

  1. Choosing kids Halloween costumes they’ll actually keep on
  2. Popular Halloween costume ideas for girls and boys
  3. Sizing and safety tips for children’s costumes
  4. Finish the look and find more
  5. Questions people ask

Shop related

Not sure on size?

Costumes often run small. Check our guide before you order.

Size guide →

Questions people ask

Quick answers about kids’ halloween costumes: sizing, quality and what to buy. Still unsure? Our size guide and theme pages have more help.

Browse all themes →
What are the most popular kids Halloween costumes?

Witches, skeletons, grim reapers and zombies are the classics most children ask for. Glow-in-the-dark skeletons are especially popular because they look great on a dark night out.

What size Halloween costume should I buy for my child?

Go by height and chest measurements rather than age alone, as fancy dress often runs small. If they’re between sizes, size up so there’s room for warm layers. Our size guide helps you compare.

How do I keep my child warm in a Halloween costume?

Layer a long-sleeved top and leggings underneath and buy a size up so it all fits. Inflatable and hooded costumes are naturally warmer choices for trick-or-treating.

Are Halloween costumes safe for toddlers?

Pick costumes without long trailing hems or small loose parts, and skip masks in favour of face paint. Always supervise little ones near candles and patch test any make-up first.

What’s a good non-scary Halloween costume for kids?

A friendly witch, a glow skeleton or a silly inflatable keeps things fun rather than frightening. They’re ideal for younger children or nervous trick-or-treaters.

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