Klaw (Ulysses Klaue) is a supervillain appearing in American comic books published by Marvel Comics. The character is depicted as a human physicist who has been transformed into solid sound, and who wears a sonic emitter on his right wrist as a prosthetic device. He is often in conflict with the Fantastic Four and the Avengers, and he is also an enemy of the Black Panther and Ka-Zar.