Which Babylonian flood-survivor resembles Noah in the Epic of Gilgamesh?

Utnapishtim is the Babylonian flood-survivor who resembles Noah in the Epic of Gilgamesh.

In the flood narrative embedded in the Epic of Gilgamesh, the god Ea warns Utnapishtim that the gods intend to send a devastating flood. Utnapishtim builds a large boat, brings aboard his family and living creatures, and survives while the surrounding world is destroyed.

After the waters subside, Utnapishtim releases birds to discover whether land has emerged. He eventually leaves the vessel and offers a sacrifice. The gods then grant him and his wife a special form of immortality, separating him from ordinary human beings.

The comparison with Noah is based on several shared story elements, including a divinely commanded vessel, a catastrophic flood, preservation of life, bird releases, and a post-flood sacrifice. The two accounts are not identical, however: they belong to different literary and religious traditions, and the Babylonian story predates the surviving written form of Genesis.