A Sumerian bronze figure of Nannar, Circa early 2nd Millennium BC
Nannar (or Nanna), the god of the moon, is a Sumerian deity, the son of Enlil and Ninlil. He eventually became identified with the Semitic god Sin. The two chief seats of Nannar’s worship were Ur in the south of Mesopotamia and Harran in the north.
He is commonly designated as En-zu, which means “lord of wisdom”. During the period that Ur exercised a large measure of supremacy over the Euphrates valley (c. 2600-2400 BC), Nannar was regarded as the head of the pantheon.