Fanny Hatton (1875 – November 27, 1939) was an American playwright and screenwriter known for the works she wrote with her husband/writing partner, Frederic Hatton.

The couple, who had many of their works presented on Broadway—were known foremost for their comedies.

She began writing after her first husband, John Kenneth Mackenzie, was killed in Mexico in an incident that was widely covered.

Together they wrote dozens of plays and screenplays between 1912 and the early 1930s.

[2] Some of their Broadway productions include Years of Discretion (1912), The Great Lover (1915), Upstairs and Down (1916), Lombardi, Ltd. (1917), The Indestructible Wife (1918), The Squab Farm (1918), The Checkerboard (1920), We Girls (1921), Treat 'em Rough (1926), Synthetic Sin (1927), Love, Honor and Betray (1930), His Majesty's Car (1930), The Stork is Dead (1932), and The Great Lover (1932).