Dietrich "Dieter" Wisliceny (13 January 1911 – 4 May 1948) was a member of the Schutzstaffel (SS) and one of the deputies of Adolf Eichmann, helping to organise and coordinate the large-scale deportations of the Jews across Europe during the Holocaust.

Dieter was born in 1911 as the son of the lord of the manor (Rittergut Regulowken) Erich Wisliceny (d. 1928) and his wife Wally, née Paul, in East Prussia.

Wisliceny eventually rose to the rank of SS-Hauptsturmführer (captain) in 1940; he worked in the Reich Security Head Office Referat IV B4 under Adolf Eichmann.

[1] During implementation of the Final Solution, his task was the ghettoization and liquidation of several important Jewish communities in Nazi-occupied Europe, including those of Greece, Hungary and Slovakia.

His testimony would later prove important in the successful prosecution of Eichmann for his complicity in the Holocaust in Israel in 1961.