Atka may refer to:
- Atka, Alaska, a city in the United States, on Atka Island
- Atka Airport, a public airport in Alaska, United States
- Atka, Russia, an urban-type settlement in Magadan Oblast, Russia
- Atka Iceport, an iceport in West Antarctica
- Atka Island, in the Andreanof Islands
- Mount Atka (AKA Korovin Volcano), the highest point of Atka Island
- USCGC Southwind (WAGB-280) (USS Atka (AGB-3)), a United States Coast Guard ice breaker