Austin Cornelius Dunham (June 10, 1833 – March 17, 1918) was an American businessman, executive, merchandiser, inventor and philanthropist. He was a promoter of state-of-the-art technology in the electrical industry. Dunham was involved with methods of transmission of electrical energy, arc lighting systems, rotary converters, electrical current regulators, and central distribution equipment. As chief executive officer of Hartford Electric Light Company for over thirty years, he managed the distribution of electricity throughout the state of Connecticut.