Aleksey Semyonovich Vishnyakov (Russian: Алексей Семенович ВИШНЯКОВ) (1859–1919) was a Russian entrepreneur and philanthropist.
He is famous for creating the Moscow Institute of Commerce in 1907, later known as the Plekhanov Russian Economic Academy (now Plekhanov Russian Economic University). It was, at that time, the first Russian university dedicated to commercial studies, and one of the first in Europe.
Several members of the Vishnyakov dynasty have been faculty members of the university, till today.