Which Mesopotamian flood story features Atrahasis, a man warned to build a boat?

The Mesopotamian flood story featuring Atrahasis is the Epic of Atrahasis. This Akkadian work, preserved on clay tablets, tells how the god Enki warns Atrahasis about a planned flood and instructs him to build a boat.

The surviving Old Babylonian version is generally dated to the 17th century BCE, making it one of the earliest known literary flood narratives. Atrahasis brings his family, craftsmen, animals, and provisions aboard. After the flood, he sends out birds and offers a sacrifice, elements that invite comparison with the later Genesis account of Noah.

The story also contains a broader explanation for why the gods send the flood: humanity has become too numerous and noisy for the gods' comfort. That motivation differs from Genesis, where human violence and corruption are central reasons given for judgment. Atrahasis is related to the flood episode in the Epic of Gilgamesh, where the survivor is named Utnapishtim. These are connected Mesopotamian traditions, but they are not the same text.