Michael Lvovitch Tsetlin (the surname is also written Cetlin, Tzetlin, Zeitlin, Zetlin; cyrillic: ?????? ??????? ??????) (22 September 1924 – 30 May 1966) was a Russian mathematician and physicist who worked on cybernetics.
He introduced the Gelfand–Tsetlin basis for finite-dimensional representations of classical groups.
He was the founder of the learning automaton approach to machine learning.