Alter Isaac Levin (; 4 January 1883 â 4 October 1933), also known by the pen name Asaph ha-Levi (), was a Hebrew-language writer and poet.
Born in Minsk, he immigrated to Ottoman Jerusalem (later Mandatory Palestine) in 1891, studying there at the Etz Chaim Yeshiva. During World War I he conducted espionage for the British. He committed suicide in 1933.