Professor Helmut Beckmann (22 May 1940 – 3 September 2006) was a German psychiatrist. He was one of the founders of neurodevelopmental theory of schizophrenia and biologically-based psychiatry in Germany. Beckmann's major scientific interests were psychopharmacology, neuropathology of endogenous psychoses, and differentiated psychopathology, in the tradition of Carl Wernicke, Karl Kleist and Karl Leonhard.