Judah Leib (Leibele) (Löbele) Prossnitz (c.1670-c.1730/1750) was a kabbalist born about the end of the seventeenth century at Brody, Galicia. He left his native city and went to Prossnitz, Moravia, where he married, earning a livelihood by peddling in the neighboring villages. On account of his poverty he occupied a deserted hovel, which was reputed to be haunted. Prossnitz taught that since the appearance of Shabbatai Zevi God had entrusted the guidance of the world to him, after whose ascent to heaven the mission passed to Jonathan Eybeschütz and, finally, to Prossnitz himself.