Gustav Wagner
| Gustav Wagner | |
|---|---|
| Birth name | Gustav Franz Wagner | 
| Nickname(s) | The Beast, Wolf (Yiddish: װעלפֿל, Volf) | 
| Born | 18 July 1911 Vienna, Austria-Hungary | 
| Died | 3 October 1980 (aged 69) São Paulo, Brazil | 
| Allegiance | Nazi Germany | 
| Branch | Schutzstaffel | 
| Years of service | late 1930s—1945 | 
| Rank | SS-Hauptscharführer | 
| Unit | Death's Head Units | 
| Commands | Sobibor extermination camp | 
| Awards | War Merit Cross 2nd Class With Swords (1942-1943) | 
Gustav Franz Wagner (18 July 1911 – 3 October 1980) was an Austrian member of the SS with the rank of Master Sergeant (Hauptscharführer). Wagner was a deputy commander of Sobibor extermination camp in German-occupied Poland, where 200,000-250,000 Jews were murdered in the camp's gas chambers during Operation Reinhard. Due to his brutality, he was known as "The Beast" and "Wolf".