Heinz Barwich was a German nuclear physicist. He was deputy director of the Siemens Research Laboratory II in Berlin. At the close of World War II, he followed the decision of Gustav Hertz, to go to the Soviet Union for ten years to work on the Soviet atomic bomb project, for which he received the Stalin Prize. He was director of the Zentralinstitut für Kernforschung at Rossendorf near Dresden. For a few years he was director of the Joint Institute for Nuclear Research in Dubna, Soviet Union. In 1964 he defected to the West.

Gustav Ludwig Hertz was a German experimental physicist and Nobel Prize winner for his work on inelastic electron collisions in gases, and a nephew of Heinrich Hertz.