Whatì, officially the Tłı̨chǫ Community Government of Whatì is a First Nations community in the North Slave Region of the Northwest Territories, Canada. Whatì is located by Lac La Martre, about 164 km (102 mi) northwest of the territorial capital of Yellowknife.

The North Slave Region or Tłicho Region is one of five administrative regions in the Northwest Territories of Canada. It is the most populous of the five regions, with a population of almost 23,000. According to Municipal and Community Affairs the region consists of eight communities with the regional office situated in Yellowknife and a sub-office in Behchokǫ̀. With the exception of Yellowknife, the communities are predominantly First Nations.