Henkin is a Jewish last name and may refer to the following people:Leon Henkin, logician and mathematician Henkin quantifier, a concept he pioneered Gennadi Henkin, mathematician William A. Henkin, psychotherapist and sex therapist Yosef Eliyahu Henkin, Orthodox rabbi Louis Henkin, legal academician and writer Yehudah Herzl Henkin, Orthodox rabbi, nephew of Louis Henkin and grandson of Yosef Eliyahu Henkin Eitam and Na'ama Henkin, American-Israeli couple killed in a terror attack in 2015 Hilary Henkin, American screenwriter and producer Evgeny and Yakov Henkin, 1930s street photographers in Berlin and Leningrad Vladimir Ya. Henkin, Russian and Soviet stage and screen actor and comic, People's Artist of the RSFSR Victor Henkin, singer and dramatic actor Kirill V. Henkin, Soviet and dissident public figure, secret agent, writer, journalist and long-term contributor to Radio Liberty Lauren Henkin, visual artist and landscape photographer