Moisei Iakovlevich Beregovsky (Russian: ?????? ????????? ???????????) (1892 – 1961) (the Hebrew first name is ??? Moshe-for Moses, surname Beregovski or Beregovskii,in Yiddish ???????????), was a Soviet era (currently split between the Russian and Ukrainian) Jewish folklorist and ethnomusicologist.
He has been called the "foremost ethnomusicologist of Eastern European Jewry".
His research gathered melodies and words of Yiddish folk songs, wordless melodies (nigunim), as well as Eastern European Jewish dance melodies (klezmer music).