Sir Frederick Orr Orr-Lewis, 1st Baronet (11 February 1860 – 18 November 1921) was a Canadian businessman. Orr-Lewis (he used both names as a surname, sometimes hyphenated) was born in Hamilton, Canada West, and raised in Montreal, Canada East. He was the son of , a Welsh immigrant. He joined his father's business, , and eventually became president. He was also instrumental in setting up and became president of Canadian Vickers Ltd, the Canadian arm of the British shipbuilding and armaments giant, Vickers. Many Royal Navy ships were built in the company's Canadian yards during the First World War, and for this, in the 1920 New Year Honours, Orr-Lewis was created a baronet.