Abraham Zevi Idelsohn (Hebrew: אַבְרָהָם צְבִי אידלסון‎; middle name also rendered Zvi, Zwi, or Zebi; 1882–1938) was a prominent Jewish ethnologist and musicologist, who conducted several comprehensive studies of Jewish music around the world. He is the maternal grandfather of Joel Goodman Joffe (Lord Joffe). Abraham Zevi Idelsohn may also be known as Bashir Am Israelim