Abraham Zevi Idelsohn (Hebrew: ×Ö·×‘Ö°×¨Ö¸×”Ö¸× ×¦Ö°×‘Ö´×™ ×ידלסון; 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.