David Robertson Brown (August 28, 1869 – March 28, 1946) was a Canadian architect.

David Robertson Brown was born in Montreal on August 28, 1869, the son of James Brown and Elizabeth Robertson.

[3] In 1890, Brown went to Boston, Massachusetts, where he worked for architectural firms, including Shepley, Rutan and Coolidge, heirs to the practice of Henry Hobson Richardson,[4] before returning to Montreal in 1894 and forming the architectural firm of Brown, McVicar, and Heriot.

From 1900 to 1905 he worked alone,[3] then formed a temporary working partnership with Percy Erskine Nobbs,[5] and finally in 1907 went into partnership with Hugh Vallance.

Brown served as President of the Royal Architectural Institute of Canada and the Quebec Association of Architects.