Lieutenant-Colonel Sir Hugh Andrew Montagu Allan, was a Canadian businessman and philanthropist. He was the principal heir of his father, Sir Hugh Allan, and became deputy chairman of the family-owned Allan Steamship Line. He was president of several major Canadian financial institutions and of the Montreal General Hospital. He co-founded and was president of the Ritz-Carlton Hotel in Montreal. In 1940, he and his wife donated their Montreal home, Ravenscrag, to the McGill University Faculty of Medicine, and it became known as the Allan Memorial Institute. He is best remembered as a sportsman who donated the Allan Cup, a trophy that is still awarded today to the Canadian men's amateur ice hockey champions.

Sir Hugh Allan was a Scottish-Canadian shipping magnate, financier and capitalist. By the time of his death, the Allan Shipping Line had become the largest privately owned shipping empire in the world. He was responsible for transporting millions of British immigrants to Canada, and the businesses that he established from Montreal filtered across every sphere of Canadian life, cementing his reputation as an empire builder. His home, Ravenscrag, was the principal residence of the Golden Square Mile in Montreal.