Captain Neston William Diggle, CMG, RN (7 January 1881 – 17 December 1963) was a Royal Navy officer during the First World War who was Naval attaché in Rome 1919–1922.
[3] Diggle was soon after appointed to the battleship HMS Mars, when he was selected to travel with a procession of 12 pdr guns in Queen Victoria's Diamond Jubilee parade through London.
Following service in the first world war, Diggle was British Naval attaché in Rome from July 1919 until 1922.
In addition to the CMG, Diggle was awarded the 1914 Star, the World War I British War Medal, the World War I Victory Medal, the Queen Victoria Diamond Jubilee Medal, Officer of the French Legion of Honour, Officer of the Order of the Crown (Belgium), the Croix de guerre 1914-1918 (France) with palm, and the Croix de guerre (Belgium) with palm.
After his retirement from the Royal Navy, Diggle lived in the village of Tellisford, Somerset and he became a director of the investment company the Sons of Gwalia Limited.