Dupont Circle is a traffic circle, park, neighborhood, and historic district in Northwest Washington, D.C. The traffic circle is located at the intersection of Massachusetts Avenue NW, Connecticut Avenue NW, New Hampshire Avenue NW, P Street NW, and 19th Street NW. The Dupont Circle neighborhood is bounded approximately 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. The local government Advisory Neighborhood Commission (ANC 2B) and the Dupont Circle Historic District have slightly different boundaries.
 
Dupont Circle is served by the Washington Metro Red Line at the Dupont Circle Metro station. There are two entrances: north of the circle at Q Street NW and south of the circle at 19th Street NW.