Madai (Hebrew: מָדַי, pronounced [maˈda.i]; Greek: Μηδος, [mɛːˈdos]) is a son of Japheth and one of the 16 grandsons of Noah in the Book of Genesis of the Hebrew Bible. Biblical scholars have generally identified Madai with the Iranian Medes of much later records. The Medes, reckoned to be his offspring by Josephus and most subsequent writers, were also known as Madai, including in both Assyrian and Hebrew sources.