Daniel Cordier (10 August 1920 – 20 November 2020) was a French resistance fighter, historian, and art dealer.[1] As a member of the Camelots du Roi, he engaged with Free France in June 1940. He was secretary to Jean Moulin from 1942 to 1943, and his opinions evolved to the left. He was named a Companion of the Resistance in 1944, and, after the war, he became a historian and art dealer.