Horatio Gouverneur Wright (March 6, 1820 – July 2, 1899) was an engineer and general in the Union Army during the American Civil War. He was responsible for building the fortifications around Washington DC, and in the Overland Campaign he commanded the first troops to break through the Confederate defences at Petersburg. After the war, he was involved in a number of engineering projects, including the Brooklyn Bridge and the completion of the Washington Monument, and served as Chief of Engineers for the U.S. Army Corps of Engineers.