Abu Isa (also known as Ovadiah, Ishaq ibn Ya'qub al-Isfahani, Isaac ibn Jacob al-Isfahani) was a self-proclaimed Jewish prophet sometime in the 8th century CE in Persia and the leader of a short-lived revolt. Proclaimed by some of his followers to be the Messiah, Abu Isa himself never made such claims or inferences. He seems to have allied himself with Sunbadh after the assassination of Abu Muslim in 755 CE. His forces fought Caliph al-Mansur's army at Rayy only to be defeated. Abu Isa fell in this battle.