Murder Clown is the ring name of a Mexican luchador enmascarado, or masked professional wrestler, currently signed to Lucha Libre AAA Worldwide (AAA). Murder Clown's ring character is that of a nightmarish clown and he is part of Los Psycho Circus along with Monster Clown and Psycho Clown. Murder Clown's real name is not a matter of public record, as is often the case with masked wrestlers in Mexico where their private lives are kept a secret from the wrestling fans.

Promociones Antonio Peña, S.A. de C.V. d/b/a Lucha Libre AAA Worldwide (Commonly referred to as simply AAA is a Mexican Lucha Libre promotion based in Mexico City, Mexico. It was founded in 1992, when Antonio Peña broke away from Consejo Mundial de Lucha Libre to set up his own promotion to have more creative freedom.