Fenius Farsaid was a King in Irish mythology. He was King of Scythia when the Tower of Babel was being built, and one of 72 chieftains working for King Nimrod to build it. He managed to keep his language alive even after Babel confused languages and this eventually became Irish according to the myth. His son Nel married Scota, the daughter of King Cingris of Egypt. From his son the Gaels supposedly descended. He is mentioned in "Lebor Gabala Erenn" and "Auraicept na en-Eces".