Isaak Iosifovic Revzin (Russian: Исаак Иосифович Ревзин; 1923–1974) was a Russian linguist and semiotician associated with the Tartu–Moscow Semiotic School.
Isaac Revzin was born in Istanbul. He worked at the Institute of Foreign Languages. A structural linguist, he proposed that linguistics be developed as a formal axiomatic theory. Despite the fact that he was a specialist in machine translation, he only saw a computer (and from a distance) once in his life. He also wrote in collaboration with his wife, Olga Revzina. He died in Moscow.
His son, Grigory Revzin, living in Moscow, is an art critic and a journalist.