Leopold Koželuch (Czech pronunciation: [ˈlɛopolt ˈkoʒɛlux], born Jan Antonín Koželuh, alternatively also Leopold Koželuh, Leopold Kotzeluch) (26 June 1747 – 7 May 1818) was a Czech composer and music teacher. Koželuch's compositional output included sonatas and concertos for keyboard, the instrument in which he specialised, as well as chamber music, choral music and opera.