Walter Huppenkothen (31 December 1907 in Haan, Rhineland – 5 April 1978 in Lübeck) was a German lawyer, Sicherheitsdienst (SD) leader, and Schutzstaffel (SS) prosecutor in the Hauptamt SS-Gericht.
Huppenkothen attended school in Opladen and studied Law and Political Science at the University of Cologne and University of Düsseldorf and then qualified as a lawyer.
On 1 May 1933, he joined the Nazi Party and the Allgemeine SS.
Unable to find employment in government service he joined the SD (the intelligence service of the SS) in Düsseldorf.
He also served for a brief time as head of State Police and as an SD Chief in the East Prussian-town of Tilsit (now Sovetsk, Russia), and was replaced in both positions by fellow Gestapo member Dr.