Vidkun Abraham Lauritz Jonssøn Quisling (; Norwegian: [ˈʋɪ̂dkʉn ˈkʋɪ̂slɪŋ] ; 18 July 1887 – 24 October 1945) was a Norwegian military officer, politician and Nazi collaborator who headed the government of Norway during the country's occupation by Nazi Germany during World War II.