Siegfried Graetschus, German SS officer (died 1943)

Siegfried Graetschus was a German SS functionary at the Sobibor extermination camp during Operation Reinhard, the deadliest phase of the Holocaust in occupied Poland. He was assassinated by a prisoner during the Sobibor uprising.

The Schutzstaffel was a major paramilitary organisation under Adolf Hitler and the Nazi Party in Nazi Germany, and later throughout German-occupied Europe during World War II.