Ashur-uballit I (Aššur-uballiṭ I), is king of the Assyrian empire (1365 BCE-1330 BCE or 1353 BCE – 1318 BCE).

His reign marks Assyria's independence from the kingdom of Mitanni, by defeating Shuttarna II; and the beginning of Assyria's emergence as a powerful empire.

Later on, due to disorder in Babylonia following the death of the Kassite king Burnaburiash II, Ashur-uballit establishes Kurigalzu II on the Babylonian throne, in the first of what will become a series of Assyrian interventions in Babylonian affairs.