Harold Becker (born September 25, 1928) is American film and television director, producer, and photographer, associated with the New Hollywood movement and best known for his work in the thriller genre.

He studied art and photography at the prestigious Pratt Institute and began his career as a designer and stills photographer. He segued to directing TV commercials and short films, including the award-winning Ivanhoe Donaldson. His directorial debut conducting a feature film was with the drama The Ragman's Daughter (1972). His second feature was the acclaimed The Onion Field (1979), a dark cop thriller starring John Savage and James Woods, a remarkable role that brought him recognition from the public and several award nominations as Best Supporting Actor in the role of a dangerous and menacing cop killer.