The Tsuutʼina Nation, also spelled Tsuu Tʼina or Tsu Tʼina, is a First Nation band government in Alberta, Canada. The Tsuu T'ina Nation 145 reserve is located directly west of Calgary, with its eastern edge directly adjacent to the southwest city limits. Their traditional territory spans a much larger area in southern Alberta. The land area of the current reserve is 283.14 km2, and it had a population of 1,982 in the 2001 Canadian census.