Stanisław Salmonowicz (9 November 1931 – 24 May 2022) was a Polish historian, professor of the Nicolaus Copernicus University in Toruń, and a member of the Polish Academy of Learning and History Institute of the Polish Academy of Sciences. He specialised in the history of law, Polish history from the time of the Polish Enlightenment to World War II, and history of Polish-German relations. He has been described as one of the premier Polish authorities in the field of the history of law.