| Washington National Guard Museum | |
| Map Type: | Washington#USA |
| Coordinates: | 47.115°N -122.5647°W |
| Location: | Building #2 (The Arsenal) Camp Murray, Washington |
| Type: | Military museum |
The Washington National Guard Museum, also known as The Arsenal Museum, is a military museum of the Washington National Guard. It is located at the Washington National Guard headquarters at Camp Murray, visible from Interstate 5 near Lakewood, Washington.
The collection includes (inside) military artifacts and memorabilia including National Guard weapons, uniforms and diaries, and outside, static displays including an M47 Patton tank, F-101 Voodoo jet fighter, and AH-1 Cobra attack helicopter.
The building housing the museum, The Arsenal, was built in 1915–1916. It predates the nearby Lewis Army Museum, just as the National Guard's Camp Murray is a generation older than the adjacent and larger Fort Lewis (now Joint Base Lewis-McChord).