Home World Book Day Costumes Kids Book Day Costumes

Kids Book Day Costumes

Bring storybooks to life with our fun and imaginative Kids Book Day costumes. Perfect for school events, library activities, or themed parties, Smiffys offers a wide range of outfits inspired by classic children’s books, fairytales, and modern stories. From storybook heroes and heroines to quirky characters from popular novels, there’s a costume to spark every child’s imagination.

Pair costumes with accessories like hats, wands, masks, or props to complete the look. Whether your child is dressing up solo or joining friends for a group theme, our Kids Book Day fancy dress makes storytime magical.

Shop by collection

Girls Book Day Costumes
Skip to results list
Gender
Age
Size
Product Type
Colour
Theme
Character
Animals
Sub Animals
Brand
Price
to
The highest price is £42.99
Clear
Availability
127 items

Filter

Gender
Age
Size
Product Type
Colour
Theme
Character
Animals
Sub Animals
Brand
Price
to
The highest price is £42.99
Availability

Our Book Day costumes for children combine fun, comfort, and creativity:

  • Classic literary characters – Alice in Wonderland, Peter Pan, Mary Poppins, and other timeless favourites.
  • Fairytale and fantasy outfits – princesses, knights, witches, wizards, and magical creatures.
  • Modern book-inspired costumes – characters from contemporary children’s novels and series.
  • Group and themed options – coordinate with Women’s Book Day Costumes and Men’s Book Day Costumes for family or class themes.

Complete the outfit with themed fancy dress accessories like wands, hats, glasses, or props. Ideal for school celebrations, library reading days, or birthday parties, these costumes let children step straight into their favourite stories.

Shop now for Kids Book Day fancy dress with fast UK delivery and inclusive sizing — Smiffys helps make every child’s literary adventure unforgettable.