Hezekiah ben Obadiah was the ruler of the Khazars, probably in the mid ninth century CE. He was the son of Obadiah, the descendant of Bulan who brought rabbinical scholars to and built yeshivot in Khazaria. Little is known about Hezekiah's reign. As with other Bulanid rulers, it is unclear whether Hezekiah was Khagan or Khagan Bek of the Khazars, although the latter is more likely.
Hezekiah was succeeded by his son Menasseh I.
- Kevin Alan Brook. The Jews of Khazaria. 2nd ed. Rowman & Littlefield Publishers, Inc, 2006.
- Douglas M. Dunlop, The History of the Jewish Khazars, Princeton, N.J.: Princeton University Press, 1954.
- Norman Golb and Omeljan Pritsak, Khazarian Hebrew Documents of the Tenth Century. Ithaca: Cornell Univ. Press, 1982.