Frank Percy Doel (14 July 1908 – 22 December 1968) was an antiquarian bookseller for Marks & Co in London, England who achieved posthumous fame as the recipient of a series of humorous letters from American author Helene Hanff, to which he scrupulously and, at first, very formally replied. The shop where he worked was at 84 Charing Cross Road, the title of a bestselling 1970 novel written by Hanff which became a cult classic, a 1981 stage play, and a 1987 film starring Anthony Hopkins as Doel and Anne Bancroft as Hanff.
He was born in Wallasey, Cheshire, and moved from there to Harringay, London, when he was eight years old.
From 1919 to 1924, Doel was educated at Hornsey County Grammar School, a co-educational school also attended by his elder brother.
On leaving school, Doel started his first, and only, job with Marks & Co, an antiquarian bookshop, located at 84 Charing Cross Road, London.
Always known as "young Frank", he learnt the trade from his employers Ben Marks and Mark Cohen.
Doel was twice married.
In 1936 he married Mary Price, and their daughter, Sheila, was born in 1939. Mary died in 1945. In 1947 Doel married Nora Morrison and a second daughter, Mary, was born in 1948.
During the Second World War in the Middle East Doel served as a Private in the RAOC.
Doel travelled the country and was well regarded wherever he went. Mark Cohen would describe him as the shop's 'anchor man'.
Doel loved classical music and was, with his brother, a keen supporter of Tottenham Hotspur F.C..
Doel had many good friends and colleagues in the antiquarian book trade and much of his and Nora's social life centred on the "Bibliomites", the Society of Antiquarian Booksellers Employees, of which he was a Committee Member.