While many people think of JK Rowling's Harry Potter series as kids books, the books are just as popular with grown ups, which is why we carry a great selection of adult Harry Potter costumes. In fact, for those who started reading the Harry Potter books as children when they were first released (Harry Potter and the Sorcerer's Stone came out in 1997 in the United States), many have grown up in a Harry Potter-influenced world, making our adult Harry Potter costumes a favorite of grown ups of any age. If you do not want to wear one of our adult Harry Potter costumes, you can accompany your little witches and wizards as Dumbledore or Hagrid or in one of our witch or warlock costumes, giving the night a group theme. Our adult Harry Potter costumes give you the chance to be the boy wizard and save the world, and who would not want to be the hero who rids the world of the evil of Voldemort once and for all?