Sin

Sīn /ˈsiːn/ or Suen (Akkadian: 𒂗𒍪 EN.ZU, pronounced Su'en, Sîn) or Nanna (Sumerian: 𒀭𒋀𒆠 DŠEŠ.KI, DNANNA) was the god of the moon in the Mesopotamian religions of Sumer, Akkad, Assyria and Babylonia. Nanna is a Sumerian deity, the son of Enlil and Ninlil, and became identified with the Semitic Sīn. The two chief seats of Nanna's/Sīn's worship were Ur in the south of Mesopotamia and Harran in the north. A moon god by the same name was also worshipped in South Arabia.

He was also known as En-zu, which means "lord of wisdom".