Waneta (ca. 1795-1848), also Wahneta, was a Sioux chief.
Waneta, a Yanktonai Sioux, was born about 1795 in what is now Brown County, South Dakota. He joined his father in siding with the British against the United States during the War of 1812. He fought at the siege of Fort Meigs in 1813 and at Sandusky and was wounded in the latter battle.
After the war, the British rewarded Waneta for his loyalty by presenting him with a captain's commission. He subsequently visited England and remained sympathetic to the British until 1820, when an abortive expedition against Fort Snelling resulted in a change of heart. Thereafter, he gave wholehearted support to American interests.
A dominant chief of the Sioux tribe, Waneta signed a trade treaty with the Americans on 25 July 1825. On 17 August 1825 he signed the first Treaty of Prairie du Chien which fixed the boundaries of Sioux territory.
Waneta died in 1848 at the mouth of the Warreconne River, the present Beaver Creek in what is now Emmons County, North Dakota.
Two United States Navy ships have been named USS Wahneta and one has been named USS Waneta in honor of Waneta.
Waneta Hall, a residence hall at South Dakota State University, was named in honor of Chief Waneta in 1959. This renewed a pattern of alliteration to name buildings using words from the Lakota language. Three other residence halls on the campus had earlier been named Wenona (meaning first-born daughter) Hall, (1917), Wecota (meaning second-born daughter) Hall (1919) and Wecota Annex (1940). Wenona and Wecota Halls are now used as office buildings and have been placed on the National Register of Historic Places listings in Brookings County, South Dakota. Waneta Hall and Wecota Annex are still used as residences for students as of 2010.