Haggai (; , Ḥaggay or Hag-i, Koine Greek: Ἀγγαῖος; ) was a Hebrew prophet during the building of the Second Temple in Jerusalem, and one of the twelve minor prophets in the Hebrew Bible and the author of the Book of Haggai. His name means "my holiday". He was the first of three post-exile prophets from the Neo-Babylonian Exile of the House of Judah (with Zechariah, his contemporary, and Malachi, who lived about one hundred years later), who belonged to the period of Jewish history which began after the return from captivity in Babylon.