Arpachshad (Hebrew: אַרְפַּכְשַׁד – ʾArpaḵšaḏ, in pausa אַרְפַּכְשָׁד‎ – ʾArpaḵšāḏ; Greek: Ἀρφαξάδ – Arphaxád), alternatively spelled Arphaxad or Arphacsad, was one of the five sons of Shem, the son of Noah (Genesis 10:22, 24; 11:10-13; 1 Chron. 1:17-18). His brothers were Elam, Asshur, Lud and Aram; he is an ancestor of Abraham. He is said by Gen. 11:10 to have been born two years after the Flood, when Shem was 100.
His name also appears in later books, including the Gospel of Luke in the New Testament.