Thomas Timothy Fallon (August 17, 1837 – August 23, 1916) was an Irish-born American soldier who fought in the American Civil War. Fallon received the United States' highest award for bravery during combat, the Medal of Honor, for his action during the Battle of Williamsburg in Virginia in May 1862 and the Battle of Seven Pines in Virginia and Big Shanty, Georgia in June 1864. He was honored with the award on 13 February 1891.