The Ahtna are an Alaska Native Athabaskan people of Alaska. Ahtna may also refer to:
Ahtna, Incorporated, an Alaska Native Regional Corporation created under the Alaska Native Claims Settlement Act of 1971
Ahtna language, the indigenous language of the Ahtna
Atna, Norway, a village in the Stor-Elvdal municipality in Norway
Atna Peaks, an eroded shield volcano in the Wrangell Mountains of eastern Alaska
Atna Range, a small subrange of the Skeena Mountains in northern British Columbia, Canada
Copper River (Alaska), also known as Ahtna River
Lake Atna, a proglacial lake that was in the Copper River Basin
