George F. Stewart (February 22, 1908 – March 18, 1982) was an American food scientist who was involved in processing, preservation, chemistry, and microbiology of poultry and egg-based food products. He also became the first president of the International Union of Food Science and Technology (IUFoST) after it was formed at the 1970 conference in Washington, D.C., from the International Congress of Food Science and Technology.