Chaim ibn Attar or Ḥayyim ben Moshe ibn Attar (Arabic: حاييم بن موشي بن عطار, Hebrew: חיים בן משה בן עטר; c. 1696 – 7 July 1743) also known as the Or ha-Ḥayyim after his popular commentary on the Torah, was a Talmudist and Kabbalist.

He studied with them every Friday night the Torah portion of the week with explanations that was later written down and developed into his famed commentary 'Or ha-Hayyim al ha-Torah.

[5] When a famine hit Morocco, he decided to leave his native country and settle in the Land of Israel, then part of the Ottoman Syria.

[8] One of his disciples there was Chaim Yosef David Azulai, who wrote of his master's greatness: "Attar's heart pulsated with Talmud; he uprooted mountains like a resistless torrent; his holiness was that of an angel of the Lord,... having severed all connection with the affairs of this world.

It is said that that week in Europe, the Baal Shem Tov was sitting at Seudah shlishit, and before anyone in the area could have found out about Chaim's death, he exclaimed, “The light from the West has been extinguished!”[10] He is buried in the Mount of Olives Jewish Cemetery in Jerusalem, Israel.