Alfred Emil Richard Kneschke (* June 15, 1902 in Altlöbau, November 24, 1979 in Freiberg) was a German mathematician, engineer and university lecturer.
During the World War II, Kneschke managed the Referat IV, Section II of the Wehrmacht Signals intelligence organization General der Nachrichtenaufklärung until November 1944, working on cryptanalysis and decoding of British, USA, French and Balkan cipher systems.
From Nov 1944, he worked in the OKW/Chi cipher bureau as a cryptanalyst.