Nikolski Air Station (IATA: IKO, ICAO: PAKO, FAA LID: IKO) is an unattended airport located in Nikolski on Umnak Island in the Aleutians West Census Area of the U.S. state of Alaska. This former military airport is now owned by The Aleut Corporation.

Scheduled commercial airline passenger service is subsidized by the Essential Air Service program. Current service to Nikolski is provided by Grant Aviation from Unalaska.

As per Federal Aviation Administration records, the airport had 165 passenger boardings (enplanements) in calendar year 2008, 219 enplanements in 2009, and 160 in 2010.