Nikolai Terent'yevich Shamalov, Nikolai Terent'evich Shamalov or Nikolai Terentievich Shamalov (Russian: ??????? ??????????? ???????;born January 24, 1950, Belarus) is a dentist, a Russian businessman, and a founding member of Ozero.
His nickname is Professor Filip Filippovich Preobrazhensky (Russian: ????????? ?????? ?????????? ??????????????) or the "Professor of the Transfiguration," who was the central character that transforms from a stray dog into a New Soviet man in Mikhail Bulgakov’s Heart of a Dog.