Harlan Leonard was an American jazz bandleader and clarinetist from Kansas City, Missouri.
Leonard was born in Kansas City in 1905. A professional musician from the age of 17, he joined Benny Moten's orchestra in 1923, where he led the reed section until 1931. In 1931 he and Thamon Hayes formed the Kansas City Skyrockets, which included trumpeters Ed Lewis and James Ross, trombonist Vic Dickenson, and pianist Jesse Stone. After disputes with the Chicago local of the American Federation of Musicians the band broke up.
In 1939 Leonard formed Harlan Leonard and his Rockets, which featured a young Myra Taylor