Asriel Günzig (also known as Azriel Günzig, Ezriel Günzig, Israel Günzig, Izrael Günzig, or J. Günzig) (Hebrew: עזריאל גינציג‎) was a rabbi, scholar, bookseller, editor and writer. He served as the rabbi of Loštice, Moravia, from 1899 until 1920. Günzig was born on April 10, 1868, in Kraków, where he received traditional Talmudic education, and he finished his studies in philosophy and Semitic languages at the University of Bern, where he earned his doctorate. In Antwerp, he became the head of the Hebrew Tachkemoni School and held this position for ten years.