Edgar Lewis Horwood (1868–1957) was a Canadian architect who served as Chief Dominion Architect from 1915 to 1917.
As chief government architect he was responsible for many of the federal buildings constructed in this period. Drawings for public buildings designed by Horwood and his staff during his tenure as Chief Architect of the Department of Public Works are held at the Library and Archives Canada in Ottawa.
He worked as an architect in private practice in Ottawa and the National Capital Region as E.L. Horwood (1895–1912); Horwood & Taylor (1907–10); Horwood, Taylor & Horwood (1911–1912); E.L. Horwood (1918–1929); Horwood & Horwood (1929–1937).
In 1891, Edgar Lewis Horwood designed the Britannia Nautical Club’s first clubhouse; the Club is celebrating is 125th anniversary in 2012.