Hans Erwin Karl Ernst Martin Graf von Spreti-Weilbach (24 September 1908 – 30 June 1934) was a member of a German noble family who joined the Nazi Party.

He served as the chief adjutant to Ernst Röhm, the SA-Stabschef, and was executed by members of the Leibstandarte SS Adolf Hitler during the Night of the Long Knives.

A cousin from the senior (Kapfing) family line, Cajetan Graf von Spreti, became an SA officer and an official in the Reich Ministry of Labor.

There, in the early morning hours of June 30, he was arrested together with other members of the SA leadership by a contingent of the Bavarian political police under Hitler's personal command and taken to Stadelheim prison in Munich.

[6] In any event, the accounts agree that Spreti-Weilbach was jailed at Stadelheim where he was executed by firing squad in the evening of 30 June by members of the Leibstandarte SS Adolf Hitler under the command of Sepp Dietrich.

Also murdered together with him were five other top SA leaders: Hans Hayn, Edmund Heines, Peter von Heydebreck, Wilhelm Schmid and August Schneidhuber .

"[8]Spreti-Weilbach's body was initially buried in Munich's Friedhof am Perlacher Forst [de], but was exhumed and cremated on 21 July 1934 and presented to his parents in a funeral urn.

His father unsuccessfully sought to obtain an explanation for the murder of his son through inquiries to Deputy Führer Rudolf Hess and Reichsführer-SS Heinrich Himmler.