Washington National Guard Museum, Military museum in Camp Murray, Pierce County, US.

The Washington National Guard Museum at Camp Murray houses military weapons, uniforms, diaries, and artifacts in indoor galleries while displaying tanks and fighter jets outside. The collection spans over a century of the state's military operations and equipment.

The Arsenal, the building that houses the museum, was built between 1915 and 1916 at Camp Murray. It predates the nearby Lewis Army Museum, just as Camp Murray is a generation older than the adjacent Fort Lewis, now part of Joint Base Lewis-McChord.

The museum is run by volunteers of the Washington National Guard State Historical Society, who care for the collection of National Guard weapons, uniforms and diaries. Its displays and outdoor vehicles tell how the Guard's equipment changed across the 20th century.

The museum sits at the Washington National Guard headquarters at Camp Murray, beside Interstate 5 near Lakewood, and the Arsenal building and outdoor vehicles can be seen from the highway. The site lies next to Joint Base Lewis-McChord, and the nearby Lewis Army Museum is a separate institution. The museum is run by volunteers of the Washington National Guard State Historical Society.

The outdoor collection features an M47 Patton tank, F-101 Voodoo fighter jet, and AH-1 Cobra attack helicopter representing different eras of military technology. These vehicles showcase the evolution of combat equipment from different decades.