Wager Swayne (November 10, 1834 – December 18, 1902) was a Union Army colonel during the American Civil War who eventually was appointed as the last major general of volunteers of the Union Army. Swayne received America's highest military decoration the Medal of Honor for his actions at the Second Battle of Corinth. He also was effectively the military governor of Alabama from March 2, 1867 to July 14, 1868 after the passage of the first Reconstruction Act by the U.S.