William Marion "Sonny" Landham (February 11, 1941 – August 17, 2017), or Sonny Landham, was an American film actor, stunt man and politician. He portrayed tracker Billy Sole in Predator.

At the beginning of his acting career, Landham was an actor in pornographic films. He then became a mainstream movie actor and appeared in a number of Hollywood films, including The Warriors (as a subway policeman whose leg gets broken by a baseball bat-wielding Michael Beck), Predator, 48 Hrs., Lock Up and Action Jackson.