Mikhail Vasilyevich Ostrogradsky (transcribed also Ostrogradskiy, Ostrogradskii) (Ukrainian: ??????? ?????????? ??????????????, Russian: ?????? ?????????? ?????????????, September 24, 1801 – January 1, 1862) was a Ukrainian mathematician, mechanician and physicist in the Russian Empire.
Ostrogradsky was a student of Timofei Osipovsky and is considered to be a disciple of Leonhard Euler and one of the leading mathematicians of Imperial Russia.