The lion hat is a hat that was created by Luna Lovegood. It had the appearance of an ordinary pointed hat topped with a fake stuffed lion head. She wore it to show her support for the Gryffindor Quidditch team whenever they played against the Slytherin Quidditch team. When she tapped the hat with her wand, it let out an extremely realistic roar. One of Luna's many eccentricities, it is presumed to be well-known throughout Hogwarts School, as Harry once referred to it as being Luna's "famous lion-topped hat" as he heard it from the Hogwarts Quidditch Pitch.