Atka is a hamlet located on the east side of Atka Island, in Aleutians West Census Area, Alaska, United States. The population was 92 at the 2000 census.
The population of Atka is nearly entirely Aleut (Unangan). The major industry is fishing.
Atka is located at 52°11′57″N 174°12′48″W / 52.19917°N 174.21333°W / 52.19917; -174.21333 (52.199271, -174.213398).