The Tŝideldel First Nation is the band government of the Tsi Del Del subgroup of the Tsilhqot'in people, located in the Chilcotin District in the western Central Interior region of the Canadian province of British Columbia.

It also includes smaller reserves around Redbrush and Puntzi Lake.

Local oral histories are confident that the Tŝideldel First Nation was originally given a reserve at the mouth of the Alexis Creek (i.e. somewhat to the west of the town of Alexis Creek); the band was later moved to a less advantageous position at the Redstone Reserve.

Download coordinates as: Indian reserves under the administration of the Tŝideldel First Nation are:[3] The band owns Tsi Del Del Development Corporation, which owns and operates several businesses.

Many members still engage in ranching and hunter-guiding and entrepreneurship, as well as traditional hunting and fishing.