Jonas Carl Greenfield (October 20, 1926 in New York City – March 13, 1995 in Jerusalem) was an American scholar of Semitic languages, who published in the fields of Semitic epigraphy, Aramaic studies, and Qumran studies, and a distinguished member of the Israel Academy of Sciences and Humanities.
[1] Greenfield studied at Yale University, receiving a Master of Arts in 1951 and his doctorate in 1956 (with a dissertation on "The Lexical Status of Mishnaic Hebrew").
In 1990 he became Caspar Levias Professor of Ancient Semitic Languages at the Hebrew University.
[4] The Orion Center for the Study of the Dead Sea Scrolls and Associated Literature, Hebrew University, Jerusalem, has held the Jonas C. Greenfield Scholars’ Seminar since 1999.
For an appreciation of his work on Qumran and related texts see Baruch A. Levine, "The Contribution of Jonas Greenfield to the Study of Dead Sea Literature."