Gustav Schwarzenegger (August 17, 1907 - December 1, 1972), son of Karl Schwarzenegger, was a policeman (Gendarmerie-Kommandant), postal inspector, and high ranking soldier of the Nazi party. He was the father of Hollywood star and California governor Arnold Schwarzenegger.

An Austrian legal document indicates that Gustav Schwarzenegger was certainly a member of the Sturmabteilung (SA), later known as "Storm troopers" or "Brown Shirts." He joined the SA on May 1, 1939, about a half year after the SA assisted in the launch of Kristallnacht ("Crystal Night" or "Night of the Broken Glass") with SA Unit 512. That was one year after Germany invaded Austria.

Schwarzenegger's war record has come under public scrutiny since his son won the 2003 California Recall election. The investigation bore no evidence of misconduct. His son Arnold has disavowed any approval of his father's Nazi past.

Gustav Schwarzenegger married Aurelia Jadrny (July 2, 1922- August 2, 1998) on October 5, 1945, in Mursteg , Steiermark, Austria. He died in Weiz, Steiermark, Austria, where he was transferred as a policeman. He is buried in Weiz Cemetery, Weiz , Steiermark, Austria. His son Arnold Schwarzenegger did not attend his funeral. Aurelia Jadrny Schwarzenegger died of a heart attack while visiting Weiz Cemetery. She is buried next to Gustav Schwarzenegger.