Yizhar Hirschfeld was an Israeli archaeologist studying Greco-Roman and Byzantine archaeology. He was an associate professor at the Hebrew University of Jerusalem and director of excavations at a number of sites around Israel, including Ramat Hanadiv, Tiberias, and Khirbet ed-Deir. He also published a book on the archaeology of Qumran in which he proposed an assessment of the site that was contrary to prevailing views.