Martin Gabel (June 19, 1911 – May 22, 1986) was an American actor, film director and film producer. One of Gabel's earliest noted roles was as Neil Williams, a newspaper reporter, on the radio serial comedy Easy Aces in the mid-to-late 1930s. Gabel's most noted work was as narrator and host of the May 8, 1945, CBS Radio broadcast of Norman Corwin's epic dramatic poem On a Note of Triumph, a commemoration of the fall of the Nazi regime in Germany and the end of World War II in Europe. The broadcast was so popular that the CBS, NBC, Blue and Mutual networks broadcast a second live production of the program on May 13.

Gabel was first associated with Orson Welles when he played Javert in his six-part radio adaptation of Les Misérables (1937).  He became one of the original members of Welles's Mercury Theatre repertory company. On the stage Gabel portrayed Cassius in Caesar (1937), a critically acclaimed modern-dress adaptation of Shakespeare's tragedy streamlined into an anti-fascist tour de force,  and starred as Danton in Danton's Death (1938). On radio, he played Professor Van Helsing in "Dracula" (1938), the debut episode of The Mercury Theatre on the Air.