John Walker, CBE, FBA, FSA (4 September 1900 – 12 November 1964) was a Scottish numismatist.
He returned to the University of Glasgow in 1927 as an assistant lecturer in Arabic, but then spent another three years in Egypt (1928–31), this time in the Ministry of Education.
By this time, he had written entries in encyclopedias about Islam and had published a popular work on the Quran.
Work on the project stalled during the Second World War, the last four years of which saw Walker appointed to the Air Staff Intelligence.
[2] Walker's achievement was substantial; he was recognised by the award of the DLitt from the University of Glasgow in 1942, the Huntingdon Medal of the American Numismatic Society in 1955 and the medal of the Royal Numismatic Society in 1956; he was elected a fellow of the British Academy in 1958 and appointed a Commander of the Order of the British Empire in 1963.