Sitting Bull, Indian name Tatanka Iyotake, (born c. 1831, near Grand River, Dakota Territory, now in South Dakota), U.S. Died December 15, 1890, on the Grand River in South Dakota), Teton Dakota Indian chief under whom the Sioux tribes united in their struggle for survival on the North American Great Plains. He is remembered for his lifelong distrust of white men and his stubborn determination to resist their domination.

He was killed by Indian agency police on the Standing Rock Indian Reservation during an attempt to arrest him, at a time when authorities feared that he would join the Ghost Dance movement.

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