Kušuḫ, also known under the name Umbu, was the Hurrian god of the moon. He is attested in cuneiform texts from many sites, from Hattusa in modern Turkey, through Ugarit, Alalakh, Mari and other locations in Syria, to Nuzi, located near modern Kirkuk in Iraq, but known sources do not indicate that he was associated with a single city. His name might be derived from the toponym Kuzina, possibly the Hurrian name of Harran, a city in Upper Mesopotamia, but both this etymology and identification of this sparsely attested place name remain uncertain. He was a popular, commonly worshiped god, and many theophoric names invoking him are known. In addition to serving as a divine representation of the moon, he was also associated with oaths, oracles and pregnancy. Some aspects of his character were likely influenced by his Mesopotamian counterpart Sin, while he in turn was an influence on the Ugaritic god Yarikh and Luwian Arma. In Hurrian mythology, Kušuḫ appears as one of the allies of the weather god Teššub in his struggle against Kumarbi, but known compositions do not provide much information about his individual characteristics. It has also been proposed that the Ugaritic composition Marriage of Nikkal and Yarikh was based on a Hurrian myth about Kušuḫ, well attested as the husband of this goddess. Name Kušuḫ, usually written dKu-uš-uḫ in cuneiform, was the primary name of the Hurrian moon god. There is no agreement if transcriptions of Hurrian words should reflect theories about the possible presence of voiced and unvoiced consonants in them; conventional spelling of Kušuḫ's name in modern publications reflects the view that leaving the disputed ones unvoiced is preferable. The alternate spelling Kušaḫ is attested in Alalakh and uncommonly in texts from Hattusa. According to Manfred Krebernik the form Ušu is also known, though he does not list the location where sources it occurs in were found. Two separate writings of Kušuḫ's name in the Ugaritic alphabetic script are attested, kḏġ and kzġ, vocalized as Kuḏuġ and Kuzuġ, respectively. In addition to these spellings, the name could be also represented by the logograms d30 (the numeral associated with the moon) and dEN.ZU, like that of the Mesopotamian moon god Sin. For example, according to Gary Beckman Kušuḫ might be among the deities designated by the former logogram in texts from Emar. Forms combining logographic and phonetic versions, d30-uḫ and dEN.ZU-uḫ, are also known.