Sitka Seaplane Base (FAA LID: A29) is a public use seaplane base owned by and located in Sitka, a city and borough in the U.S. state of Alaska.

[1] It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.

[2] This seaplane base is located near the Sitka Rocky Gutierrez Airport.

For the 12-month period ending December 31, 2006, the airport had 4,750 aircraft operations, an average of 13 per day: 84% air taxi and 16% general aviation.

At that time there were 9 aircraft based at this airport, all single-engine.