Stadium–Armory station is a Washington Metro station in Southeast, Washington, D.C. It is located at the border of the Barney Circle and Kingman Park neighborhoods. The station was opened on July 1, 1977, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). Stadium–Armory serves the Blue, Orange and Silver Lines.

The station is a transfer station, as this is the last station shared by the three lines before the lines diverge going east; east of the station, all three lines rise above ground onto elevated track to cross the Anacostia River. At the diverge point, the Orange Line continues above ground veering northbound towards the Minnesota Avenue station, and the Blue and Silver Lines continue eastbound entering a tunnel towards Benning Road.

The Stadium–Armory station serves the Barney Circle and Kingman Park neighborhoods. It was adjacent to the now-defunct RFK Stadium, which was the former home of the D.C. United soccer team, the Washington Redskins, and the Washington Nationals, as well as of the second Washington Senators franchise before their relocation to Texas in 1972. The station also serves the D.C. Jail, and D.C. Armory, which is a popular venue for shows and entertainment and the headquarters of the District of Columbia National Guard. Together with the Potomac Avenue station, Stadium-Armory is one of two Metro stations within walking distance of Congressional Cemetery. Before its closure in 2001, D.C. General Hospital was served by the Stadium–Armory station.

With the redevelopment of the former D.C. General Hospital campus into a new mixed-use waterfront neighborhood called "Hill East", the neighborhood around the Stadium–Armory station will be in transition for the first time in years. Additionally, with the move of D.C. United to a new Audi Field soccer-specific stadium in the Buzzard Point area of Washington in July 2018, the future of RFK Stadium is uncertain, with the possibility of demolition lingering over the 1960s-era facility. As of July, 2022, EventsDC announced the demolition of RFK Stadium to be completed by 2023.

The station opened on July 1, 1977. Its opening coincided with the completion of 11.8 miles (19.0 km) of rail between National Airport and RFK Stadium. Orange Line service to the station began upon the line's opening on November 20, 1978. Since then, the station has been the last underground station on the eastern end of the Orange Line, while Ballston-MU is the last on the western end.

In 1979, the D.C. Armory requested that the station name be changed to "Starplex" for the Stadium Armory Complex, but that request was ignored by the Metro Board. Stadium–Armory would also serve as the eastern terminus of the Blue Line from its opening through the opening of its extension to Addison Road on November 22, 1980.

The station was supposed to be the Silver Line's eastern terminus, but in December 2012, due to safety concerns regarding a pocket track between this station and Minnesota Avenue (the first station to the east on the Orange Line), Metro officials decided to extend the line into nearby Prince George's County, Maryland to Downtown Largo, which is the eastern terminus of the Blue Line. Silver Line service at Stadium-Armory began on July 26, 2014.

Between May 28 and September 5, 2022, all Orange Line trains were terminating at Stadium–Armory station due to the Platform Improvement Project which closed stations north of Stadium–Armory station. On weekends, all Blue and Silver Line trains were terminating Stadium–Armory while Orange Line trains were cutback to Ballston–MU station due to aerial structure repairs along the D route.

On September 21, 2015, a transformer caught fire near the station, causing severe delays. The reduced power as a result of the loss of the transformer caused WMATA to implement strategies to combat congestion in the system. This included having Orange and Silver line trains skip the Stadium–Armory station during rush hours, but service had been restored as of November.

Stadium-Armory is an island platform station with two tracks. Track D1 is for eastbound trains to New Carrollton or Downtown Largo, and track D2 is for westbound trains to Vienna, Franconia–Springfield, or Ashburn. An indicator sign at the north end of the station flashes to inform passengers of the arriving train's destination, showing Orange for New Carrollton, and Blue and Silver for Downtown Largo. This feature is only used at final transfer stations; another example being Rosslyn.       

The station has two entrances along 19th Street SE; the north entrance at Independence Avenue and the south entrance between C & Burke Streets SE. Elevator access is at the south entrance.

• D.C. Armory
• Eastern High School
• Kingman and Heritage Islands Park
• Congressional Cemetery
• Anacostia Riverwalk Trail
• National Arboretum (accessible via B2 Metrobus)

• WMATA Stadium–Armory station page

• The Schumin Web Transit Center: Stadium–Armory Station
• C Street entrance from Google Maps Street View
• Independence Avenue entrance from Google Maps Street View

38°53′18″N 76°58′38″W / 38.8883°N 76.9771°W / 38.8883; -76.9771