Hacham Eliyahu Yitzhak Hazan was born in Baghdad. In 1906 he began to officiate as rabbi of Hong Kong's Bavli [Iraqui) community. In 1920, he moved to Shanghai to officiate as rabbi of its Bavli community. In 1930 he had the privilege of immigrating to Israel, and settled in Jerusalem.
Hacham Eliyahu Yitzhak Hazan passed away on 1 Nissan, 5698 (1938) and was buried on the Mount of Olives.
His known writings have been published in Yad Eliyahu, a series of books of Responsa that also include piyutim and excerpts from the Zohar from Maimonides' introduction to the Mishna.