Fay Templeton (December 25, 1865 – October 3, 1939) was an American actress, singer, songwriter, and comedian.

Her parents were John J. Templeton and Alice Van Asse, both of whom were actors/vaudevillians; Fay followed in their footsteps, making her Broadway debut in 1900. Templeton excelled on the legitimate and vaudeville stages for more than half a century. She was a favorite headliner and heroine of popular theater, appearing until 1934. For a time she dated Sam Shubert, of the Shubert family of theatre owners, until his death in a railroad accident.

Some of her notable performances were in H.M.S. Pinafore and Roberta. Her career longevity was attributable not only to her physical appearance, which was of the fashionable robust nature of her time, but her multitude of talents from singing to composing.