The Adventures of Ellery Queen is an Old Time Radio detective program that aired from June 18, 1939, to May 27, 1948. The show was a result of the collaboration between producer-director George Zachary and writers Frederic Dannay and Manfred Lee. It features the character Ellery Queen, a private detective who solves mysteries in his spare time and then writes about them. Ellery was often joined by his father, police inspector Richard Queen.

The show's format was unique, as it invited a panel of armchair detectives to try to solve the case during the broadcast. The episodes followed a consistent structure where the mystery was presented, the panelists shared their theories, and Ellery Queen revealed the correct solution.

Over the years, the show featured numerous actors, including Hugh Marlowe, Carleton Young, and Sydney Smith, who played Ellery Queen. Additionally, the show had over 750 different panelists. Ellery Queen proved to be a popular show and even received the Best Radio Drama Edgar Award in 1946 alongside Mr. and Mrs. North.

The radio program successfully carried over the "Challenge to the Reader" concept from the Ellery Queen franchise, giving the audience a chance to solve the mystery alongside the characters in the show.