Moshe Greenwald (1853–1910), also spelled Grunwald, was one of the greatest rabbis of Hungary at the end of the 19th century. He was the Rav of Chust, Hungary and progenitor of the Pupa Hasidic dynasty through his son Rabbi Yaakov Yechezkiya. He was also the author of Arugas Habosem, a book of responsa covering a wide breadth of halakhic issues.