Amurru, also known under the Sumerian name Martu (in Sumerian and Sumerograms: ๐ญ๐ฅ๐ ), was a Mesopotamian god who served as the divine personification of the Amorites. In past scholarship it was often assumed that he originated as an Amorite deity, but today it is generally accepted that he developed as a divine stereotype of them in Mesopotamian religion. As such, he was associated with steppes and pastoralism, as evidenced by his epithets and iconography. While this was initially his only role, he gradually developed other functions, becoming known as a god of the mountains, a warlike weather deity and a divine exorcist.
He is first attested in documents from the Ur III period, chiefly in Sumerian and Akkadian theophoric names. Later he also came to be worshiped in Babylon, Assur and other locations in Assyria and Babylonia. He had his own cult center somewhere in the area known as the Sealand in Mesopotamian texts.