The Naval Reserve Armory is a landmark building in the South Lake Union neighborhood of Seattle, Washington, United States.

The building is a large concrete structure influenced by the Moderne and Art Deco movements, that was built by the Works Progress Administration from 1941 to 1942.

It was dedicated on July 4, 1942, a "grim summer" point during the war, at a ceremony attended by honored guest Mrs. Peter Barber, whose three sons had been killed in the Japanese attack on Pearl Harbor.

[4] The $90 million renovation of the armory for MOHAI was partially funded by the Washington State Department of Transportation, which had acquired the Montlake site for highway construction, and private donations.

[4][7] LMN Architects led the project, which was awarded LEED Platinum status for its sustainable features that maximize daylight use and recycled materials during construction.