Voltaire Paine Twombly (February 21, 1842 – February 24, 1918) was a Union veteran of the American Civil War and a recipient of the Medal of Honor. He received the Medal of Honor for his actions during the Battle of Fort Donelson on February 15, 1862, when he picked up and carried his regiment's national colors after three other members of his regiment were killed or incapacitated by Confederate fire while attempting to secure the flag. Twombly also participated in a number of other engagements in the Civil War, including the Siege of Corinth and Sherman's March to the Sea.