Gamliel Cohen (Hebrew: ?????? ????; April 10, 1922 – July 15, 2002) was "one of the fathers of Israeli espionage".
Much of his life was spent living under various false identities in Europe, Africa, and the Middle East.
A deep-cover Mossad agent, he infiltrated neo-Nazi groups as well as governments that were hostile to Israel.
Cohen wrote a book about the undercover unit he helped to create inside the Palmach, which was posthumously published by the Israeli Ministry of Defense and Galili Center for Defense Studies.
Nearly all of Cohen's work at Mossad remains classified today, and his very existence was only publicly acknowledged after his death.