National Geographic Society Headquarters

The National Geographic Society Headquarters is a historic complex of buildings in Washington, D.C., United States. The complex was constructed in phases beginning in 1904 to house the offices and museum of the National Geographic Society, a scientific and educational nonprofit institution that has been headquartered in Washington since its 1888 founding. The historical portion of the site consists of three buildings: the 1904 original structure Hubbard Hall, the adjoining Administration Building, of which the north wing was constructed during 1912–1913, and the south wing and central pavilion in 1932; and the 1963–1964 Stone Building. A fourth building constructed in 1984 is too modern to be considered a contributing structure to the historical segment of the complex.

The National Geographic Society developed over time from a handful of Washington-area scientists into a substantial, internationally respected institution. The group's headquarters grew along with the society, with the progressively larger buildings eventually occupying an entire half of a city block. Their architectural styles evolved over time as well. All were designed by notable architects, and the 1963–64 Stone Building by Edward Durell Stone in particular is considered a quality example of the New Formalism style.

The complex was listed on the National Register of Historic Places in 2023. Hubbard Hall and the Administration Building had previously been listed on the register as contributing structures to the Sixteenth Street Historic District. The site is also listed on the District of Columbia Inventory of Historic Sites. As of 2025, the society still used the complex for its headquarters and was constructing a 2026 expansion on the site.