David McConaughy (July 13, 1823 – January 14, 1902) was a noted attorney, cemetery president, and civic leader in Gettysburg, Pennsylvania, as well as a part-time intelligence officer for the Union Army during the American Civil War. He was a driving force behind the creation of the Gettysburg National Cemetery following the Battle of Gettysburg. He also led early efforts to preserve the Gettysburg Battlefield for future generations.