Bruce Geller (October 13, 1930 – May 21, 1978) was an American composer, screenwriter, and television producer.

Born in New York City, New York, Geller graduated from Yale University. He pursued a career writing scripts for shows on the DuMont Television Network and others. He also wrote lyrics for musical theatre productions including "Livin' the Life " (1957) and "All in Love" (1961) but his efforts met with only modest success. Geller left New York for Hollywood, where he was employed writing scripts for episodes of several television series, including Zane Grey Theater, Have Gun, Will Travel, and The Rifleman. He also worked as the co-executive producer of the Rawhide series for the 1964-65 television season.

In 1966, Geller wrote, created, and produced the television series Mission: Impossible, the accomplishment for which he is best remembered. The show ran on CBS from 1966 to 1973 and earned him an Emmy Award in 1966 as the show's producer plus another for "Outstanding Writing Achievement in Drama." During the first season, a photograph of Geller was included in the dossier of Impossible Missions Force agents that IMF leader Dan Briggs perused each week and was often visible on screen (such as in the episode "Operation Rogosh").

Geller also wrote and produced for the popular Mannix series which was twice nominated for an Emmy Award. In 1973 he made his one and only venture into feature films, directing and producing Harry in Your Pocket starring James Coburn and Walter Pidgeon.

A flying enthusiast, Bruce Geller died when the Cessna 337D Skymaster he was piloting ran into difficulty in foggy conditions and crashed into Buena Vista Canyon near Santa Barbara, California. He is interred in Mount Sinai Memorial Park Cemetery in Los Angeles.

Author, composer, writer and songwriter, educated at Yale University (BA degree). He joined ASCAP in 1961, and wrote the off-Broadway stage scores for "Living the Life" and "All in Love". His chief musical collaborator was Gene de Paul, and his popular-song compositions included "I Found Him" and "What Can It Be?".