Yosef Greenwald (Hebrew: יוסף גרינוואלד 1903 – Brooklyn 1984) was the second Rebbe of the Pupa Hasidic dynasty, and the charismatic leader of all the Pupa Hasidim. Prior to World War II, he was a rabbi and rosh yeshiva in Pápa, Hungary. Greenwald was the son of Rabbi Yaakov Yechezkiah Greenwald of Pupa - author of Vayaged Yaakov (1882-1941), son of Rabbi Moshe Greenwald of Chust - author of Arugas HaBosem.