The Seal Island Historic District is a historically significant site in the Pribilof Islands in the Bering Sea of Alaska. It is best known to be the home for the Northern Fur seal herds that were much sought after by indigenous peoples and other hunters of various nationalities. The herds were once hunted down vigorously for their fur.

In order to conserve these seal herds, the governments of the US, Canada, UK, Russia, and Japan made an agreement in 1911 to ensure the preservation of the herds in the St. Paul and St. George Islands. Sadly, despite the efforts, the historic buildings continue to deteriorate due to many environmental factors as well as the lack of maintenance.

The Sea Island Historic District is a National Historic Landmark.