The Epic of Gilgamesh names Utnapishtim as its flood survivor, often compared with Noah.
Utnapishtim tells Gilgamesh how the god Ea warned him that the gods planned a devastating flood. He built a large boat, brought aboard his family, craftsmen, animals, and precious possessions, and survived the destruction. Afterward, the chief god Enlil granted him and his wife immortality.
Utnapishtim is not the same character as Noah, and the two stories belong to different literary and religious traditions. The comparison comes from their shared narrative pattern: divine warning, boat construction, preservation of life, birds used to assess the waters, and a post-flood offering.
The name Atrahasis can cause confusion because he is another Mesopotamian flood hero whose story is preserved in a separate epic. The Gilgamesh narrative incorporates related flood traditions, but its named survivor is Utnapishtim.