Smithsonian (disambiguation)

Smithsonian can refer to:
 * the Smithsonian Institution, a museum in Washington, D.C.
 * the Smithsonian Institution Building
 * Smithsonian (magazine), a magazine published by the Institution
 * Smithsonian Channel, television channel
 * Smithsonian (Washington Metro), a station of the Washington Metro approximate to the Institution
 * The Smithsonian Institution, a novel by Gore Vidal
 * 3773 Smithsonian, an asteroid
 * Smithsonian Agreement