Ratified Indian Treaty 139: Sioux, Chippewa, Sauk and Fox, Menominee, Iowa, Winnebago, and Part of Ottawa, Chippewa and Potawatomi of Illinois - Prairie du Chien, Michigan Territory, August 19, 1825
Ratified Indian Treaty 159: Sauk and Fox, Sioux (Mdewakanton, Wahpacoota, Wahpeton, Sisseton, Yankton and Santee), Omaha, Iowa, Oto and Missouri - Prairie du Chien, Michigan Territory, July 15, 1830
Ratified Indian Treaty 369: Sioux (Brule, Oglala, Miniconjou, Yanktonai, Hunkpapa, Blackfeet, Cuthead, Two Kettle, Sans Arcs, and Santee) and Arapaho - Fort Laramie, Dakota Territory, April 29, 1868
Ratified Indian Treaty 62: Potawatomi - Portage des Sioux, July 18, 1815
Ratified Indian Treaty 63: Piankashaw - Portage des Sioux, July 18, 1815
Ratified Indian Treaty 64: Teton - Portage des Sioux, July 19, 1815
Ratified Indian Treaty 65: Sioux of the Lakes - Portage des Sioux, July 19, 1815
Ratified Indian Treaty 66: Sioux of St. Peter's River - Portage des Sioux, July 19, 1815
Ratified Indian Treaty 67: Yankton Sioux - Portage des Sioux, July 19, 1815
Ratified Indian Treaty 68: Makah - Portage des Sioux, July 20, 1815
Ratified Indian Treaty 69: Kickapoo - Portage des Sioux, September 2, 1815
Ratified Indian Treaty 71: Osage - Portage des Sioux, September 12, 1815
Ratified Indian Treaty 73: Fox - Portage des Sioux, September 14, 1815
Ratified Indian Treaty 74: Iowa - Portage des Sioux, September 16, 1815
Ratified Indian Treaty 79: Sioux of the Leaf, Sioux of the Broad Leaf, Sioux Who Shoot in the Pine Tops - St. Louis, Missouri Territory, June 1, 1816
Ratified Indian Treaty 129: Sioux (Teton, Yankton and Yanktonai) - Fort Lockout Near the Three Rivers of the Sioux Pass, June 22, 1825
Ratified Indian Treaty 130: Sioux (Sioune and Oglala) - Mouth of the Teton River, July 5, 1825
Ratified Indian Treaty 132: Sioux (Hunkpapa) - Arikara Village, July 16, 1825
Ratified Indian Treaty 139: Sioux, Chippewa, Sauk and Fox, Menominee, Iowa, Winnebago, and Part of Ottawa, Chippewa and Potawatomi of Illinois - Prairie du Chien, Michigan Territory, August 19, 1825
Ratified Indian Treaty 159: Sauk and Fox, Sioux (Mdewakanton, Wahpacoota, Wahpeton, Sisseton, Yankton and Santee), Omaha, Iowa, Oto and Missouri - Prairie du Chien, Michigan Territory, July 15, 1830
Ratified Indian Treaty 217: Oto, Missouri, Omaha, and Sioux (Yankton and Santee Bands) - Bellevue, Upper Missouri, October 15, 1836
Ratified Indian Treaty 224: Sioux of Mississippi - Washington, DC, September 29, 1837
Cession: 243
Ratified Indian Treaty 226: Yankton Sioux - Washington, DC, October 21, 1837
Ratified Indian Treaty 258: Sioux (Sisseton and Wahpeton) - Traverse des Sioux on the Minnesota River, Minnesota Territory, July 23, 1851
Ratified Indian Treaty 259: Sioux (Mdewakanton and Wahpahkoota) - Mendota, Minnesota Territory, August 5, 1851
Cession: 300
Ratified Indian Treaty 307: Sioux (Yankton) - Washington, DC, April 19, 1858
Ratified Indian Treaty 308: Sioux (Mdewakanton and Wahpekuta [Wahpekute]) - Washington, DC, June 19, 1858
Ratified Indian Treaty 309: Sioux (Sisseton, Wahpeton) - Washington, DC, June 19, 1858
Ratified Indian Treaty 339: Sioux (Miniconjou) - Fort Sully, Dakota Territory, October 10, 1865
Ratified Indian Treaty 340: Sioux (Lower Brule) - Fort Sully, Dakota Territory, October 14, 1865
Ratified Indian Treaty 344: Sioux (Two Kettles) - Fort Sully, Dakota Territory, October 19, 1865
Ratified Indian Treaty 345: Sioux (Blackfeet) - Fort Sully, Dakota Territory, October 19, 1865
Ratified Indian Treaty 346: Sioux (Sans Arcs) - Fort Sully, Dakota Territory, October 20, 1865
Ratified Indian Treaty 347: Sioux (Hunkpapa) - Fort Sully, Dakota Territory, October 20, 1865
Ratified Indian Treaty 348: Sioux (Yanktonai) - Fort Sully, Dakota Territory, October 20, 1865
Ratified Indian Treaty 349: Sioux (Upper Yanktonai) - Fort Sully, Dakota Territory, October 28, 1865
Ratified Indian Treaty 350: Sioux (Oglala) - Fort Sully, Dakota Territory, October 28, 1865
Ratified Indian Treaty 360: Sioux (Sisseton and Wahpeton) - Washington, DC, February 19, 1867
Ratified Indian Treaty 369: Sioux (Brule, Oglala, Miniconjou, Yanktonai, Hunkpapa, Blackfeet, Cuthead, Two Kettle, Sans Arcs, and Santee) and Arapaho - Fort Laramie, Dakota Territory, April 29, 1868