John Russell (January 3, 1921 – January 19, 1991) was an American actor most noted for playing Marshal Dan Troop in the successful ABC western television series Lawman from 1958 to 1962.

Born John Lawrence Russell in Los Angeles, California, he fit the Hollywood image of tall, dark, and handsome. He attended the University of California as a student athlete. Following the outbreak of World War II, he joined the United States Marines, though he was initially rejected because of his height. He was commissioned as second lieutenant on 11 November 1942 and was assigned to the 6th Marine Regiment. His division was sent to Guadalcanal where he served as an assistant intelligence officer. He contracted malaria and returned home with a medical discharge.

He was discovered by a talent agent while in a Beverly Hills restaurant and made his film debut in 1945. Russell was contracted to 20th Century Fox in several supporting roles, and later was signed with Republic Pictures. He primarily played secondary roles, often in western films, but in 1952 starred opposite Judy Canova in Oklahoma Annie.