Leon Rupnik, also known as Lav Rupnik or Lev Rupnik (10 August 1880 – 4 September 1946) was a Slovene general during the Kingdom of Yugoslavia who collaborated with the Fascist Italian and Nazi German occupation forces during World War II. Known for his visceral antisemitic and openly pro-Nazi views already prior to the war, Rupnik served as the President of the Provincial Government of the Nazi-occupied Province of Ljubljana from November 1943 to early May 1945.