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.

The Allan Shipping Line was started in 1819, by Captain Alexander Allan of Saltcoats, Ayrshire, trading and transporting between Scotland and Montreal, a route which quickly became synonymous with the Allan Line. By the 1830s the company had offices in Glasgow, Liverpool and Montreal. All five of Captain Allan's sons were actively involved with the business, but it was his second son, Sir Hugh Allan, who spearheaded the second generation. In 1854, Hugh launched the Montreal Ocean Steamship Company as part of the Allan Line, and two years later ousted Samuel Cunard to take control of the Royal Mail contract between Britain and North America. By the 1880s, the Allan Line was the world's largest privately owned shipping concern.