Corporal Winthrop D. Putnam (September 18, 1837 – January 15, 1907) was an American soldier who fought in the American Civil War. Putnam received his country's highest award for bravery during combat, the Medal of Honor. Putnam's medal was won for his actions at the Battle of Vicksburg, Mississippi on July 2, 1863. He was honored with the award on April 4, 1898. Putnam was born in Southbridge, Massachusetts, entered service in Peoria, Illinois, and was buried in Milwaukee, Wisconsin.