Jay Jostyn (December 13, 1901[1][2] – June 25, 1976[3][4]) was an actor in the era of old-time radio.

[5] An article in Radio-TV Mirror in 1952 reported, "He is so generally believed to be a real life lawyer that he frequently receives mail from listeners inviting him to move to certain cities where they feel crimes are going unsolved.

[11] Jostyn's career in radio began at WLW in Cincinnati, Ohio, when he was the first poetry reader for the station's late-night Moon River program.

Jostyn was also in the casts of This Small Town,[22] Silver Theater,[23] The Top Guy,[24] and Mystery Man.

[31] In November 1943, Jostyn was elected to a one-year term as third vice-president of the New York local of the American Federation of Radio Artists.