The Adventures of Ellery Queen is the title of two separate television series made in the 1950s. They are based on the fictional detective Ellery Queen and the cases he solves with his father Inspector Richard Queen.

Ellery Queen is a pseudonym created in 1928 by the American detective fiction writers Frederic Dannay (1905–1982) and Manfred Bennington Lee (1905–1971). It is also the name of their main fictional detective, a mystery writer in New York City who helps his police inspector father solve baffling murder cases. From 1929 to 1971, Dannay and Lee wrote around forty novels and short story collections in which Ellery Queen appears as a character.