John Alexander MacAulay, was a Canadian lawyer, businessman, and community volunteer from Winnipeg, Manitoba. He was a member of the Canadian Red Cross Society, as well as the International Red Cross and Red Crescent Movement, eventually serving as the chairman of the Board of Governors of the International League of Red Cross and Red Crescent Societies. He was also involved with the Canadian Bar Association, and served a one-year term as the national president of the CBA. He was also Honorary Colonel of the Queen's Own Cameron Highlanders of Canada.