Wilhelm (Willi) Friedrich Adolf Ritterbusch (3 July 1892, Werdau – 1981, Germany), was a German National Socialist German Workers' Party (NSDAP-NaziParty) political functionary.
Among other positions, he was the German Generalkommissar zur Besonderen Verwendung ("Commissioner-General for Special Duties"), directing the political affairs and propaganda in the occupied Netherlands from the middle of July 1943 until 7 May 1945, the end of World War II.