Delve into the world of mystical creatures, evil villains, and chocolate-hungry characters on World Book Day. World Book Day is a great time to encourage dress up for your little one and to truly celebrate legendary novels and movies over the years. With our wide array of boys World Book Day costumes, you can do exactly that! Step into Hogwarts and defeat the Dark Lord as the famous Harry Potter. Get up to no good and constantly be in trouble with your parents as the one and only, Horrid Henry. Drive all of your family mad, spending hours trying to find you, dressed as the red and white striped man, Where’s Wally. We have a huge selection of boys World Book Day costumes to choose from, so you’ll look like you’ve hopped right out of a storybook. From characters from the famous Roald Dahl novels, such as The BFG and James and The Giant Peach, to the more modern characters from David Walliam’s legendary stories, Mrs Twit and Ratburger. Whichever boys World Book Day fancy dress costume you decide on, it'll be a bit hit with teachers, parents and fellow students.