National Air and Space Museum
- Country: United States
- Type: Organization
- Web site: airandspace.si.edu
- Update: 05-02
The National Air and Space Museum (NASM) is an American aerospace museum, affiliated with the Smithsonian Institution, built in 1946, with two exhibit areas in Washington, D.C., and Fairfax County, Virginia, featuring exhibits such as the Apollo 11 Command Module, specimens of lunar rocks, and more.