Frederick James Leathers, 1st Viscount Leathers CH PC (21 November 1883 – 19 March 1965) was a British industrialist and public servant.
He left school in 1898 at the age of 15 to work with Steamship Owners Coal Association (later merged with William Cory & Son), becoming managing director in 1916. He was concerned also with other companies dealing with coal or shipping services. He served in the management of the Pacific and Orient Lines, where he came to the attention of Winston Churchill, from 1931 a director of the firm.
He served as an adviser to the Ministry of Shipping from 1914 to 1918 and 1940 to 1941, and as Minister of War Transport in 1941 for the duration of World War II, on the appointment and strong recommendation of Churchill, who in so doing raised him to the peerage.
He attended the Casablanca, Washington, Quebec, and Cairo conferences in 1943. He negotiated the lend-lease of American ships to Britain. He also accompanied the Prime Minister Winston Churchill to the Yalta and Potsdam Conferences.
He later served as Minister for Coordination of Transport, Fuel and Power from 1951 to 1953. He was raised to the peerage as Baron Leathers, of Purfleet in the County of Essex, in 1941, and appointed a Companion of Honour in 1943. He was further honoured when he was made Viscount Leathers, of Purfleet in the County of Essex, in 1954.