According to the Book of Genesis, Enoch (/ˈiːnək/; Hebrew: חֲנוֹך‎ Ḥanōḵ) was a son of Cain, grandson of Adam, and father of Irad. After Cain arrived in the Land of Nod, to which he was evicted by the Lord as his punishment for murdering his brother Abel, his wife became pregnant and bore Cain's first child, whom he named Enoch.

After the birth of Enoch, the Hebrew text of Genesis 4:17 is unclear. Either Cain built a city and named it after Enoch, or else Enoch built a city. According to Jubilees 4:9, Enoch's mother/aunt was named Awan.

This Enoch is not to be confused with Noah's ancestor Enoch.

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