Spotted Tail, American tribal chief (b. 1823)
Spotted Tail (Siŋté Glešká Siouan: [sɪ̃ˈte glɛˈʃka] pronounced gleh-shka; birth name T'at'aŋka Napsíca "Jumping Buffalo" Siouan: [t'at'ə̃ka naˈpsit͡ʃa]); born c. 1823 – died August 5, 1881) was a Brulé Lakota tribal chief. Although a great warrior in his youth, and having taken part in the Grattan massacre, he declined to participate in Red Cloud's War. He had become convinced of the futility of opposing the white incursions into his homeland; he became a statesman, speaking for peace and defending the rights of his tribe.

He made several trips to Washington, D.C. in the 1870s to represent his people, and was noted for his interest in bringing education to the Sioux. He was shot and killed by Crow Dog, a Brulé Lakota subchief, in 1881 for reasons which have been disputed.