South Capitol Street is a major street dividing the southeast and southwest quadrants of Washington, D.C., in the United States. It runs south from the United States Capitol to the D.C.–Maryland line, intersecting with Southern Avenue. After it enters Maryland, the street becomes Indian Head Highway at the Eastover Shopping Center, a terminal or transfer point of many bus routes.

Southeast is the southeastern quadrant of Washington, D.C., the capital of the United States, and is located south of East Capitol Street and east of South Capitol Street. It includes the Capitol Hill and Anacostia neighborhoods, the Navy Yard, the Joint Base Anacostia-Bolling (JBAB), the U.S. Marine Barracks, the Anacostia River waterfront, Eastern Market, the remains of several Civil War-era forts, historic St. Elizabeths Hospital, RFK Stadium, Nationals Park, and the Congressional Cemetery. It also contains a landmark known as "The Big Chair," located on Martin Luther King Jr. Avenue. The quadrant is split by the Anacostia River, with the portion that is west of the river sometimes referred to as "Near Southeast". Geographically, it is the second-smallest quadrant of the city.