Walter Frederick Light, OC OOnt (June 24, 1923 – February 24, 1996) was a Canadian business executive.Born in Cobalt, Ontario, Light served in the Royal Canadian Air Force during World War II. After the war, he received a degree in Electrical Engineering from Queen's University in 1949. He started working for Bell Canada eventually being promoted to the head of the engineering department.In 1974, he became president of Northern Telecom. In 1979, he became president and chief executive officer.