Joshua Boaz ben Simon Baruch (died 1557), also known as the Shiltei Giborim after a work he authored, was a prominent Talmudist who lived at Sabbioneta, and later at Savigliano. He was a descendant of an old Judæo-Spanish family, and probably settled in Italy after the banishment of the Jews from Spain. When he was twenty-three years old, he began to publish useful works on the Talmud, in which he displayed vast erudition.