Moshe Koppel (born 1956)^[1] is an American-Israeli computer scientist, Talmud scholar and political activist; he is best known for his research on authorship attribution. Together with Shlomo Argamon and Jonathan Schler, he has shown that statistical analysis of word usage in a document can be used to determine an author's gender, age, native language and personality type.

Koppel was born and raised in New York, where he received a traditional Jewish education. He studied at Yeshivat Har Etzion, received a B.A. from Yeshiva University and in 1979 completed his doctorate in mathematics under the supervision of Martin Davis at the Courant Institute of New York University.^[2] He spent a post-doctoral year at the Institute for Advanced Study in Princeton before moving to Israel in 1980. He has been a member of the Department of Computer Science in Bar-Ilan University since then.^[3][4]

Koppel has been active in efforts to write a constitution for the State of Israel. He participated in meetings of the Knesset's Constitution Committee under the chairmanship of Member of Knesset Michael Eitan during the 16th Knesset and prepared the drafts for the committee's work on religion and state.^[18][19] Subsequently, he co-authored a draft of a complete constitution proposed by the Institute for Zionist Strategies.^[20] Later, he and Eitan co-authored another complete draft of a constitution. He also wrote legislation, passed by the Knesset in February 2011, requiring full disclosure by NGOs regarding funding received from foreign governments.^[21] In February 2012, Koppel founded the Kohelet Policy Forum, a Jerusalem-based conservative-libertarian think tank.^[22][23]