Isaac ben Hanukkah was a Jewish ruler of the Khazars mentioned in the Khazar Correspondence. He probably reigned in the mid to late ninth century CE. Little is known about his reign. As with other Bulanid rulers, it is unclear whether Isaac was Khagan or Khagan Bek of the Khazars, although the latter is more likely. He was succeeded by his son Zebulun.
- 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.
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