The Tà Âñèchë Government, or Tà Âñèchë Ndeküàowo (also rendered Tlicho Government and Tlicho Ndeküaowo), is a First Nations organization representing the Tà Âñèchë Nation, Dene people of the Northwest Territories, Canada, and covering much of their traditional territory, Tà Âñèchë Ndé, within the larger Dene Country of Denendeh. The devolved government was created in 2005 when the Tà Âñèchë Nation ratified the Tà Âñèchë Agreement with the Government of Canada.
Through this agreement certain rights relating to lands, resources and self-government were defined including Tà Âñèchë Government ownership of "39,000 km<sup>2</sup> of land located between Lake Tñdeè and the Great Bear Lake including surface and subsurface rights, the ability to define its membership known as Tà Âñèchë citizens, jurisdiction over lands and resources across Tà Âñèchë Ndé and establishment of the Weküèezhìñ Land and Water Board and the Weküèezhìñ Renewable Resources Board and a share of mineral royalties from the Mackenzie Valley." The word means 'dog rib'.
The traditional area of the Tà Âñèchë described by Chief Monfwi during the signing of Treaty 11 in 1921, was called . Weküèezhìi, the management area defined by the Tà Âñèchë Agreement, is an area larger than the land owned by the Tà Âñèchë. Weküèezhìi "shares boundaries with the Sahtu Settlement Area and Nunavut, and includes the four Tà Âñèchë member communities of Gamèti, Wekweètì, Whatì and BehchokëÃÂ." The area includes the Ekati and Diavik Diamond Mines.
The Tà Âñèchë Government is one of the Management Authorities of the NWT Conference of Management Authorities (CMA) for boreal caribou, along with the Government of the NWT, the Wildlife Management Advisory Council (NWT), the Gwich'in Renewable Resources Board, the Sahtu Renewable Resources Board, and the Weküèezhìi Renewable Resources Board.
The Tà Âñèchë Government appoints fifty percent of the Weküèezhìi Renewable Resource Board, a co-management board. The other fifty percent are appointed by the Government of Canada and the Government of Northwest Territory. The WRRB is an institution of public government, responsible for managing wildlife and wildlife habitat (forests, plants and protected areas) in the Weküèezhìi area.
Based on the 2012 Species at Risk Committee's (SARC) report, the NWT Conference of Management Authorities (CMA) in October 2013 added boreal woodland caribou to the Northwest Territories List of Species at Risk as a threatened species.