Dupont Circle is a historic neighborhood and roundabout park located in Northwest Washington, D.C., in the United States. The area is defined by its namesake circular park and serves as a prominent urban landmark within the capital city.
The neighborhood boundaries are approximately delineated by 16th Street NW to the east, 22nd Street NW to the west, M Street NW to the south, and Florida Avenue NW to the north. While much of the area is listed on the National Register of Historic Places, specific boundaries may vary slightly between the Dupont Circle Historic District and the local government Advisory Neighborhood Commission.