Rabbi Eliyahu Essas (Hebrew: אליהו אסאס, Hebrew: Илья Цвиевич Эссас, Ilya Tsvievich Essas; born 1946) is a former leader of Soviet Jewry and one of the founders of Baal Teshuva movement in the Soviet Union. He lives in Jerusalem. Essas became interested in Human Rights and Jewish cause, while studying Mathematics in Vilnius University.