Kenneth Jay Levy (February 26, 1927 – August 15, 2013) was an American musicologist who specialized in Medieval, Renaissance and Byzantine music.

[2] After service in World War II, Levy attended Queens College, City University of New York, and received a Bachelor of Arts in 1947, having studied music history under Curt Sachs and music theory under the composer Karol Rathaus.

[2][3] He received both a Master of Fine Arts and PhD at Princeton University, studying under Oliver Strunk and Erich Hertzmann.

[3] Levy specialized in a variety of topics concerning Medieval, Renaissance and Byzantine music.

[1] In Grove Music Online, Paula Higgins notes that he "investigated Byzantine and Western chant, including the Old Roman, Ambrosian, Beneventan and Ravennate repertories, and by careful comparison he has been able to draw tentative conclusions regarding the relationships of certain Western chants to Byzantine models and between modal patterns and performing practices common to East and West.