In Hawaiian mythology, Nu'u was a man who built an ark with which he escaped a Great Flood. He landed his vessel on top of Mauna Kea on the Big Island. Nu'u mistakenly attributed his safety to the moon, and made sacrifices to it. Kane, the creator god, descended to earth on a rainbow, explained Nu'u's mistake.
Missionaries to Hawaii in the 19th century considered him analogous to Noah of the Bible.