Fancy Dress Costumes for Ages 0–3 Years

Discover our adorable range of fancy dress costumes for toddlers aged 0 to 3 years. Whether it’s for their first Halloween, a themed birthday party, World Book Day at nursery, or festive celebrations like Christmas and Easter, we have the perfect outfit to make your little one the star of the show.

From cosy animal onesies and cuddly dinosaurs to baby-friendly superheroes and fairy tale favourites, each costume is designed with comfort, safety, and fun in mind. With easy fastenings, soft-touch fabrics and age-appropriate fits, dressing up has never been so delightful — or this easy.

Shop costumes for baby boys and girls with UK next-day delivery available. Browse toddler Halloween costumes, baby princess dresses, mini pirates, elves, and more.

Whether you’re looking for practical baby dress-up or something show-stopping for photos, you’ll find it here in our 0–3 years collection.