Friedrich "Fritz" Duschinsky (26 February 1907 – 1 December 1942) was a German-Czech physicist. He worked on photochemistry in France, Germany, Belgium and the Soviet Union.[1] He was deported from France (Bagneaux-sur-Loing) and murdered in the Auschwitz concentration camp in 1942.[2] He made important contributions to the theory of molecular vibronic spectra (transition between vibrational levels of different electronic states). The Duschinsky rotation effect and the Duschinsky transformation in chemistry and chemical physics are named after him.[3][4]