Gerald L. Miller (born September 9, 1942) is a retired brigadier general in the United States Marine Corps.

Miller's two brothers and his son also served in the United States Marine Corps.

Miller was commissioned through the NROTC program as an officer in the United States Marine Corps in 1964.

After returning to the United States and recovering from wounds received in combat, he served as a public affairs officer at the Marine Corps recruiting station in Chicago, Illinois.

After completing law school in 1975, Miller served as a Marine Corps judge advocate at bases and station in the United States and overseas.