Joseph G. Weiss (1918 - August 25, 1969) was a scholar of Jewish Mysticism and Hasidism. He was born in Budapest to a Neolog family, and studied both in university and at the Jewish Theological Seminary (now the and after emigrating to Mandatory Palestine, studied at the Hebrew University of Jerusalem under the tutelage of Prof. Gershom Scholem from 1941 till 1950, when Weiss moved to England. In England Weiss first taught children aged 5–11 at a Jewish School in Leeds, before spending time in London, Manchester and Oxford, where he occupied various research and teaching positions, eventually becoming the director of the Institute of Jewish Studies at University College London.