Dressing a baby or toddler for Halloween works best when the outfit stays soft, warm and quick to change. These picks suit the littlest ones, and the smaller sizes fit toddlers who are still finding their feet.
How we chose: we favour soft, warm outfits, simple shapes that pull on fast, and looks a small child will actually keep on. Each pick links to its product page and shows what it is best for and a rough price band, so you can choose fast.
Cute character costumes
Baby prisoner costume
A soft infant convict set that gets a laugh at any family party, warm enough for a chilly night. It pulls on fast and stays comfy through a short trick-or-treat.
Slytherin baby grow
A licensed newborn romper and hat set that doubles as a photoshoot outfit. The soft cut goes over a warm layer for autumn.
Mike Wazowski baby grow
A Disney-licensed sleepsuit and hat set that photographs beautifully. It suits a baby at a family party rather than a long night out.
Little animals
Baby pumpkin romper
A hooded pumpkin romper with hat and shoes that reads instantly and costs little. Warm, simple and easy to layer over a onesie.
Baby black cat snowsuit
A fuzzy hooded jumpsuit with ears that zips on in one go. Warm enough for a proper October night out with the pram.
Baby chick romper
A hooded chick romper with striped socks that turns nap time into a costume. Cheap, soft and quick to pop on.
Spooky and sweet
Baby panda romper
A soft flannel hooded romper that gives the Halloween look without a scare. The smaller sizes suit the youngest, over a warm base layer.
Baby pirate costume
A four-piece romper, vest, hat and belt set that dresses up any plain outfit. It layers over warm clothes and packs down small.
Shop the look
Shop all kids' Halloween costumesRead our best kids' costumes guide
Frequently asked questions
What is the easiest Halloween costume for a baby?
A soft, one-piece outfit like a hooded romper or a baby grow works best. Pick something warm that pulls on fast and comes off just as quickly.
How do I keep a toddler warm in a Halloween costume?
Choose a roomy outfit and layer it over a onesie or leggings. Fuzzy hooded rompers and snowsuits go over warm clothes without a fuss.
What size should I pick for a very young child?
Sizing runs generous, so size up if you are between ages and want room for a warm layer. A slightly loose fit lasts longer and stays comfy.
Prices and availability change, so we link out for you to check the latest. As an Amazon Associate we may earn from qualifying purchases. How this works.
Curated by Halloween Kingdom, updated June 2026. We hand-pick costume ideas and the kit to recreate them. Meet Halloween Kingdom.
Related guides: newborn pumpkin costume ideas, toddler halloween costumes, family halloween costumes and kids' halloween costume ideas. toddler halloween costumes.
