Joseph Henry Longford (25 June 1849 in Dublin – 12 May 1925 in London) was a British consular official in the British Japan Consular Service from 24 February 1869 until 15 August 1902.
Although not in the front rank of British Japanologists in the 19th century occupied by Ernest Satow, Basil Hall Chamberlain, William George Aston and arguably Frederick Victor Dickins, he did make a notable contribution in the field of early Japanese studies.
Longford laboured long and hard to produce several readable and compendious books on Japan and as a member of the Japan Society of London was a strong supporter of maintaining good Anglo-Japanese relations.
He realised that Britain held Hong Kong and Singapore only as long as the Japanese allowed her to do so, and urged the importance of studying Japan on British readers.
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