Dupont Circle is a traffic circle, park, neighborhood, and historic district in Northwest Washington, D.C. 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. Much of the neighborhood is listed on the National Register of Historic Places. However, the local government Advisory Neighborhood Commission and the Dupont Circle Historic District have slightly different boundaries.
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 circle is named for Rear Admiral Samuel Francis Du Pont. The traffic circle contains the Dupont Circle Fountain in its center.
The neighborhood is known for its high concentration of embassies and think tanks. The Dupont Circle BID is responsible for the development of the area.