Joseph Cherniavsky (Yiddish: יוסף טשערניאַװסקי) (c. 1890-1959) was a Jewish American cellist, theatre and film composer, orchestra director, and recording artist. He wrote for the Yiddish theatre, made some of the earliest novelty recordings mixing American popular music, Jazz and klezmer in the mid-1920s, was also musical director at Universal Studios in 1928-1929, and had a long career in radio and musical theatre.