Meridian Mansions, also known as The Envoy, is a historic structure located in the Meridian Hill neighborhood in the Northwest Quadrant of Washington, D.C. A.H. Sonnemann was the architect for what was considered the city's finest apartment hotel when it opened in 1918.

At one time the building featured roof pavilions and lamp standards, which were removed around 1963.

The building is most notable due to its connection to the establishment of Czechoslovakia as an independent nation.

Tomáš Garrigue Masaryk, the founder and first President of Czechoslovakia, resided here between July and November 1918.

[3] This article about a property in the District of Columbia on the National Register of Historic Places is a stub.