Behind the Mike was an Old Time Radio show that aired on NBC's Blue Network from September 15, 1940, to April 19, 1942, providing a behind-the-scenes look at radio broadcasting. The show was hosted by the renowned radio personality, Graham McNamee, and featured interviews with various on-air personalities, technicians, engineers, producers, sound effect artists, actors, musicians, and more.

The program was designed to give radio listeners insights into their favorite radio shows, personalities, and the people working behind them. Typically, each episode covered up to six behind-the-scenes stories and featured a "Correspondence Corner" segment in which the host answered questions from listeners about various aspects of radio production. With music provided by Ernie Watson and his orchestra, Behind the Mike was an entertaining and informative show that every radio fan would enjoy.

After McNamee's death on May 9, 1942, the series changed its name to This is the Truth, then Nothing But the Truth, and continued until June 7, 1942. Another program with the title Behind the Mike also aired on CBS Radio during the 1931-32 season.