Joseph Rabban (Hebrew: Yosef Rabban‎; Judeo-Malayalam: Isuppu Irabbân) was a Jewish merchant, possibly from Yemen, who came to the Malabar coast (in present-day India) in the mid eighth century. According to the traditions of the Cochin Jews, Joseph was granted the rank of prince over the Jews of Cochin by the Chera ruler Bhaskara Ravivarman II.