Kingman Lake

Infobox lake
lake_name = Kingman Lake
image_lake =
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location = Washington, D.C.
coords = coord|38|53|47.41|N|76|57|55.91|W|type:waterbody_region:US|display=inline,title
type =
inflow = Anacostia River
outflow = Anacostia River
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basin_countries = United States
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Kingman Lake is a lake in Washington, D.C. The lake is a stretch of the Anacostia River separated from the river by the Burnham Barrier. The Board on Geographic Names officially decided upon the lake's name in 1977.

Kingman Lake is a 110-acre tidal freshwater impoundment created during the 1920s and 1930s to provide a recreational boating area for District of Columbia residents. The lake is connected to the tidal Anacostia River by two inlets located at the northern and southern ends of Kingman Island, a wooded 94-acre dredge/fill-created island that separates the lake from the river.

Historically, the area emerged as an expansive freshwater tidal marsh, renowned for its migratory Sora Rail population. As wetlands were dredged and filled, many such migratory birds stopped coming. The open water tidal "lake" gradually filled with sediment until the dominant low tide feature was a mudflat. Because of the lack of suitable substrate elevation, most species of emergent marsh vegetation have not been established over the existing mudflats. In in 2000 the U.S. Army Corps of Engineers, Baltimore District, led the restoration of 42 acres of the freshwater tidal emergent wetland in Kingman Lake.