Efren C. Piñon is a film director and writer from the Philippines. The main body of his career began in the early 1970s and lasted until the late 1990s. He has worked with actors such as Fred Williamson, Tony Ferrer, Leo Fong and Vic Diaz. His directorial work includes Gangsters daw kami! in 1971, Ninja Assassins in 1976 Blind Rage in 1977, Shoot the Killer in 1981 and Bandido in 1997. A significant amount of his films are of the action-exploitation type.