The Ahtna (also Ahtena, Atna, Ahtna-kohtaene, or Copper River) are an Alaska Native Athabaskan people of the Athabaskan-speaking ethnolinguistic group. The people's homeland called Atna Nenn', is located in the Copper River area of southern Alaska, and the name Ahtna derives from the local name for the Copper River. The total population of Ahtna is estimated at around 500.