Henry Jay MacMillan (January 13, 1908 - December 29, 1991) was an American artist. Born in Wilmington, North Carolina, MacMillan was a well-known, formally trained artist in Wilmington when he was drafted into the U.S. Army in 1942. He served in the 62nd Engineer Topographic Company attached to the XIXth Corps and created watercolor paintings of the war in France (Normandy), Belgium, and Germany. These included scenes of river crossings, bombed buildings, and troop movements. He was discharged in 1945 and resumed his art career in North Carolina. The Cape Fear Museum, to which he donated his wartime artwork in the 1970s, exhibited this work in an exhibition entitled WWII: A Local Artist's Perspective from May 15, 2014 - April 26, 2015.