Private Michael A. Dillon (September 29, 1839 to October 6, 1904) was an American soldier who fought in the American Civil War. Dillon received the country's highest award for bravery during combat, the Medal of Honor, for his action during the Battle of Williamsburg in Virginia on 5 May 1862 and the Battle of Oak Grove in Virginia on 25 June 1862. He was honored with the award on 10 October 1889.