Smithsonian can refer to:

• the Smithsonian Institution, a museum in Washington, DC
  • the Smithsonian Institution Building
  • Smithsonian (magazine), a magazine published by the Institution
• Smithsonian (Washington Metro), a station of the Washington Metro approximate to the Institution
• The Smithsonian Institution (novel), a novel by Gore Vidal
• 3773 Smithsonian, an asteroid
• Smithsonian Agreement
• EF Smithsonian, an educational travel organization

See also

• James Smithson
• EF Smithsonian