Charles Camille Heidsieck (1822–1893) was a 19th-century French Champagne merchant who founded the Champagne firm Charles Heidsieck in 1851. He is credited with popularizing Champagne in the United States and was known as "Champagne Charlie" during his stay.
During the American Civil War Heidsieck was imprisoned under suspicion of being a spy for the French government and the Confederacy. His imprisonment sparked an international incident between France and US over what became known as The Heidsieck Incident.
Charles Heidsieck was the son of Charles-Henri Heidsieck, a Champagne merchant who was famous for riding into Moscow on a white stallion in 1811 just ahead of Napoleon's advancing army. Heidsieck arrived with cases of his Champagne and his order book, ready to celebrate with whichever side would win the upcoming battle.
Charles-Henri was the nephew of Florens-Louis Heidsieck, co-founder of the Champagne house that eventually became Piper-Heidsieck, and cousin of Henri-Louis Walbaum and Pierre Auguste Heidsieck who founded the house that eventually became known as Heidsieck & Co Monopole. Charles Camille was married to Amélie Henriot.
In 1852, Charles Heidsieck first visited the United States and toured the New England area and New York State. He quickly saw the potential for the American market and retained an agent to facilitate his import sales. The mass import of Champagne was met with roaring success and record sales. When Heidsieck returned five years later, he was greeted in New York City with pomp and celebration with massive newspaper coverage and banquet receptions held in his honor. With this and subsequent trips, he developed the persona of Champagne Charlie that was a fixture of the New York high society scene.