Emma Kate Simmons Flint (March 3, 1850 - March 8, 1926) was an American composer who is best known for her piano piece Racquet Galop, which sold over 100,000 copies. She published her music under the name Kate Simmons or E. Kate Simmons. Simmons was born in Troy, New York, to Mary Sophia Gleason and Joseph Ferris Simmons, a banker. She married the successful businessman Charles Ranlett Flint in 1883 and they lived in Manhattan.