Leo Watson (February 27, 1898 – May 2, 1950) was an American jazz vocalese singer, drummer, trombonist and tiple player born in Kansas City, Missouri, perhaps best known as a band member of The Spirits of Rhythm, which included guitarist Teddy Bunn. Watson also worked briefly with a variety of big bands, including those of Gene Krupa, Artie Shaw and Jimmy Mundy.