Kids Costumes

Australia's biggest online range of kids costumes — over 5,000 styles for Book Week, Halloween, themed birthdays and everyday dress-up play. From toddlers to tweens, we've got the costumes Aussie kids actually want to wear.

Free shipping Australia-wide on every order. Most kids costumes ship same or next business day from our Sydney warehouse. Afterpay available at checkout.

Shop kids costumes by age group

Toddler Costumes — soft, safe and seriously cute first costumes for ages 1-4
Boys Costumes — superheroes, soldiers, sports stars, ninjas and more
Girls Costumes — princesses, fairies, pop stars, witches and warriors
Tween Costumes — for older kids who want something a bit more grown-up
Baby & Infant Costumes — adorable first dress-ups for the tiniest family members

Popular kids costume themes

Superheroes. Spider-Man, Batman, Wonder Woman, Captain America, Hulk, Thor, Black Panther, Flash — officially licensed Marvel and DC costumes for kids. We stock both basic and deluxe muscle chest versions.

Disney & Princesses. Frozen's Elsa and Anna, Belle, Cinderella, Ariel, Moana, Rapunzel, Jasmine, Snow White — plus Disney movie characters from Toy Story, Encanto, Finding Nemo and more.

Star Wars. Jedi robes, Stormtrooper outfits, Darth Vader, Yoda, Mandalorian, Rey and Kylo Ren — for fans of every Star Wars era.

Harry Potter. House robes (Gryffindor, Slytherin, Ravenclaw, Hufflepuff), Hermione, Dumbledore, plus accessories like wands, ties and scarves.

Animals & dinosaurs. Lions, tigers, sharks, T-Rex, Triceratops, sloths, butterflies — perfect for animal-themed parties, school plays and just-for-fun dress-ups.

Career and profession costumes. Doctors, firefighters, police officers, pilots, chefs, scientists, vets — perfect for "what I want to be" school days and roleplay.

Halloween classics. Witches, vampires, ghosts, pumpkins, zombies, skeletons — kid-appropriate spooky for trick-or-treating and Halloween parties.

Book characters. Where's Wally, Cat in the Hat, Harry Potter, Alice in Wonderland, Roald Dahl characters — all the classics kids love for Book Week.

Kids costumes by occasion

Book Week. Australia's biggest school dress-up event in late August. We stock hundreds of book character costumes — order early in July to lock in popular sizes.

Halloween. Spooky-but-friendly options for trick-or-treating and Halloween parties. Witches, vampires, ghosts, pumpkins, zombies — kid-appropriate scary plus heaps of cute alternatives.

Birthday parties. Whether the theme is superheroes, princesses, pirates, dinosaurs or video games — we've got dress-ups for the birthday kid and matching party packs for guests.

School plays and concerts. Historical costumes, nativity outfits, animal costumes, country-themed dress-ups for school events and end-of-year concerts.

Imagination and everyday play. Some kids just love dressing up. Plenty of our kids costumes are designed for repeated wear — durable enough for daily play, comfortable enough that kids won't take them off.

Why parents choose Costume Crazy for kids costumes

Free shipping Australia-wide. No minimum spend, no fine print.
Sized for Australian kids. Clear sizing guides on every product so the costume actually fits.
5,000+ kids costumes in stock. If your child wants to be it, we probably have it.
Officially licensed brands. Marvel, DC, Disney, Star Wars, Harry Potter and more.
Family-run, Aussie-owned. Real people on the phone or email when you need help.
Afterpay available. Buy now, pay later at checkout.
Easy returns. If it doesn't fit, send it back. We'll sort you out.

FAQ — kids costumes

How do I work out the right size?
Each product page has a size chart. Costumes are usually sized by age (e.g. 3-4, 5-6, 7-8) but check the chest, waist and length measurements where available — kids run different sizes. If you're between sizes, size up.

How fast is delivery?
Most orders ship same or next business day from our Sydney warehouse. Standard delivery to most Australian metro areas takes 2-5 business days, with express options available at checkout.

Do you stock Book Week costumes year-round?
Yes. Book Week is in August in Australia, but we hold Book Week stock all year. We start adding character costumes for the current year's CBCA theme from around April-May.

Are the costumes good quality for repeated wear?
We stock a range of quality tiers. For one-off events, our budget options are great value. For costumes that'll get loved and worn over and over, look for our premium range — the materials and stitching hold up to daily kid wear.

What if I need a kids costume in a hurry?
Order with express shipping at checkout — most express orders arrive within 1-2 business days. If the deadline's tight, get in touch and we'll do what we can.

Do you stock costumes for kids with sensory needs?
Many of our kids costumes use soft materials and easy-on designs. Look for products tagged "soft fabric" or "easy fit". Avoid latex masks for sensitive kids — we have plenty of fabric mask alternatives.