Lester Goodel Hack (January 18, 1844 – April 24, 1928) was an American soldier who fought in the American Civil War. Hack received his country's highest award for bravery during combat, the Medal of Honor. Hack's medal was won for his actions at the Third Battle of Petersburg in Virginia, where he captured the flag of the Confederate 23rd Tennessee Infantry on April 2, 1865. He was honored with the award on May 10, 1865.