Anna Dmitrievna Gelman (also Dmitriyevna/Dmitryevna) (Russian: Гельман Анна Дмитриевна) (18 February 1902 — 29 March 1991) (née Nikitin) was a Soviet and Russian chemist and engineer. She was the first to synthesise alkene complexes of platinum, discovered heptavalent states of plutonium and other actinides and created and improved processes for radionuclide production.