Alexander Vyacheslavovich Ossovsky (Russian: ????????? ???????????? ?????????, March 31 [O.S.
March 19] 1871 – July 31, 1957) was a renowned Russian musical writer, critic and musicologist, professor at Saint Petersburg Conservatory, pupil of Nikolai Rimsky-Korsakov, and friend of Sergei Rachmaninoff, Alexander Siloti and Nikolai Tcherepnin.