Orville Elias Babcock (December 25, 1835 – June 2, 1884) was an American engineer and general in the Union Army during the Civil War. An aide to General Ulysses S. Grant during and after the war, he was President Grant's private secretary at the White House, Superintendent of Buildings and Grounds for Washington D.C., and a Florida-based federal inspector of lighthouses. Babcock continued to serve as lighthouse inspector under Grant's successors Rutherford B. Hayes, James A. Garfield, and Chester A. Arthur.