Sy Bartlett (July 10, 1900 - May 29, 1978) was an American author and screenwriter/producer of Hollywood films. Born Sacha Baraniev in Ukraine, he immigrated to the United States at the age of four and adopted the name Sidney Bartlett.

He worked as a newspaper reporter before moving to Hollywood to become a screenwriter. His first credited work was for RKO Studios in 1933 and he wrote 28 screenplays from 1933 to 1969. In the 1950s he became interested in producing films, and with film star Gregory Peck founded Melville Productions in 1956.

Bartlett joined the United States Army during World War II as a captain and was assigned to the Army Pictorial Service.

Following World War II, Bartlett returned to Hollywood and joined 20th Century Fox as a writer. In 1946, he began a collaboration with Beirne Lay which resulted in the 1948 publication of the novel Twelve O'Clock High (Harper & Brothers), and in December 1949, the release of the film based on the same story (work on production began a year before publication). It was directed by King and starred Gregory Peck, Hugh Marlowe, Gary Merrill, Millard Mitchell, and Dean Jagger.

There is no entry about the novel available on Wikipedia at this time, but here is a link to the film entry.