Jack Norworth (5 January 1879 - 1 September 1959) was a U.S. songwriter, singer and vaudeville performer.
Born in Philadelphia, Pennsylvania, Norworth is credited as co-writer of a number of Tin Pan Alley hits. He wrote the lyrics of the song "Take Me Out to the Ball Game" in 1908, his most long lasting hit. But it wasn't until 1940 that he actually witnessed a Major League Baseball game. His "Shine On, Harvest Moon" was an even bigger hit at the time. There is some disagreement about Norworth's involvement in the latter. Broadway historian John Kenrick credits Edward Madden and Gus Edwards, while the family of Follies songwriter Dave Stamper claims he wrote the song while working as pianist for Nora Bayes, the credited co-writer.
Other popular songs credited to Norworth include "Back to My Old Home Town"; "Come Along, My Mandy"; "Dear Dolly"; "Good Evening, Caroline"; "Holding Hands"; "Honey Boy"; "I'm Glad I'm a Boy/I'm Glad I'm a Girl"; "I'm Glad I'm Married"; "Kitty"; "Meet Me in Apple Blossom Time"; "Over on the Jersey Side"; "Since My Mother Was a Girl"; "Sing an Irish Song" and "Smarty." "Turn Off Your Light, Mr. Moon Man" is a sequel to.