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