Kashtiliash IV is a Kassite king of Babylon ca.

1232 BCE – 1225 BCE (short chronology).

Kashtiliashu IV wages war on two fronts at the same time —against both Elam and Assyria — ending in the catastrophic invasion of his homeland.

He is ultimately defeated by Tukulti-Ninurta I, king of Assyria, who asserts a short-lived Assyrian rule over Babylonia and other areas in the region.

Kashtiliash IV is captured and deported to Assyria.