In which biblical book does the story of Noah's Ark appear?

The story of Noah's Ark appears in the biblical Book of Genesis.

The narrative runs through Genesis chapters 6 to 9. It introduces Noah, describes the world's corruption, gives the construction instructions for the Ark, recounts the Flood, and ends with Noah's covenant and the sign of the rainbow. These chapters form a connected story rather than a brief isolated reference.

Genesis is the first book of both the Hebrew Bible and the Christian Old Testament. Its name comes from a Greek word meaning “origin” or “beginning,” reflecting the book's opening creation account and its stories about early humanity, ancestors, and nations.

Other ancient cultures also preserved flood stories, especially Mesopotamian texts such as the Epic of Gilgamesh and the Atrahasis Epic. Their similarities have led to extensive comparison, but the Noah account is specifically located in Genesis. Later biblical books refer to Noah as an important ancestor and example of righteousness.