Johann Anton Leisewitz (born 9 May 1752 in Hanover, died 10 September 1806 in Braunschweig) was a German lawyer and dramatic poet, and a central figure of the Sturm und Drang era.
He is best known for his play Julius of Tarent (1776), that inspired Friedrich Schiller and is considered the forerunner of Schiller's quintessential Sturm und Drang work The Robbers (1781).