James Graham Stewart (May 21, 1907 in Homewood, Pennsylvania – March 22, 1997 in Los Angeles, California) was an American pioneer in the field of sound recording and re-recording.

In 1930, Stewart joined RKO Pictures (then owned by RCA), working in their research and development department on a noise reduction system for optical film sound.

He was eventually appointed Head of Technical Operations for Selznick International Pictures and oversaw every aspect of production and post-production for such films as King Vidor's controversial Duel in the Sun (1946), Alfred Hitchcock's The Paradine Case (1947) and William Dieterle's Portrait of Jennie (1948).

In an era when network television was beginning to challenge the film industry for audiences, Stewart worked for Glen Glenn Sound, where he stayed for the next 25 years.

Early television post-production emphasized speed and efficiency over artistic innovation, and Stewart's daily routine involved mixing two half-hour shows a day, five or six times the pace he had previously kept during the making of A-level films.

[1] Among these were Little Women (1933), The Gay Divorcee (1934), The Lost Patrol (1934), Of Human Bondage (1934), The Last Days of Pompeii (1935), Swing Time (1936), Bringing Up Baby (1938), Room Service (1938), Gunga Din (1939), The Hunchback of Notre Dame (1939), Abe Lincoln in Illinois (1940), Swiss Family Robinson (1940), The Curse of the Cat People (1944), Murder, My Sweet (1944), Spellbound (1945), Duel in the Sun (1946), Portrait of Jennie (1948) and Johnny Got His Gun (1971).