Nazi-Maruttaš, typically inscribed Na-zi-Ma-ru-ut-ta-aš or mNa-zi-Múru-taš, Maruttaš protects him, was a Kassite king of Babylon c. 1307–1282 BC and self-proclaimed šar kiššati, or "King of the World", according to the votive inscription pictured. He was the 23rd of the dynasty, the son and successor of Kurigalzu II, and reigned for twenty six years.

Kassite deities were the pantheon of the Kassites, a group inhabiting parts of modern Iraq, as well as Iran and Syria, in the second and first millennia BCE. A dynasty of Kassite origin ruled Babylonia starting with the fifteenth century BCE. Kassites spoke the Kassite language, known from references in Mesopotamian sources. Many of the known Kassite words are names of Kassite deities. Around twenty have been identified so far. The evidence of their cult is limited, and only two of them, Šuqamuna and Šumaliya, are known to have had a temple. Other well attested Kassite deities include the presumed head god Ḫarbe, the weather god Buriaš, the sun god Saḫ and the deified mountain Kamulla.