Roosevelt Hall (1903–1907) is an immense Beaux Arts-style building housing the National War College on Fort Lesley J. McNair, Washington, DC, USA.

Roosevelt Hall housed the Army War College (AWC) from 1907 to 1946 when that institution moved to Fort Leavenworth, Kansas (and a year later to Carlisle Barracks, Pennsylvania).

Since 1946, it has housed the National War College (NWC), a training and doctrine institution embracing all branches of the armed forces, as well as the Department of State and the Central Intelligence Agency.

Additional subterranean office space was excavated in the 1960s beneath the front (north) terrace of Roosevelt Hall so as not to affect the structure's exterior.

Roosevelt Hall was designed by the noted New York architectural firm McKim, Mead and White in the Neoclassical or Beaux Arts style.

The ground plan of Roosevelt Hall is oriented on a cross-axis formed by the intersection of a domed central pavilion and wings extending laterally to the east and west, each consisting of 12 bays.

It was originally intended that the stepped terraces on the north side of Roosevelt Hall would include impressive statuary of great warriors.