Blackfish, was a Native American leader, war chief of the Chillicothe band of the Shawnee tribe. Little is known about him, since he only appears in written historical records during the last three years of his life, primarily because of his interactions with the famous American frontiersmen Daniel Boone and Simon Kenton. When the Shawnee were defeated by Virginia in Dunmore's War in 1774, the resulting peace treaty made the Ohio River the boundary between western Virginia and American Indian lands in the Ohio Country. Although this treaty was agreed to by Shawnee leaders such as Cornstalk, Blackfish and a number of other leaders refused to acknowledge the loss of their traditional hunting grounds in Kentucky. Boone escaped in June 1778 when he learned that Blackfish was launching a siege of the Kentucky settlement of Boonesborough, which commenced in September of that year. The siege of Boonesborough was unsuccessful, and the Kentuckians, led by Colonel John Bowman, counterattacked Chillicothe the following spring. This raid was also unsuccessful, but Blackfish was shot in the leg, a wound which became infected and was eventually fatal.