Sir John Edward Lloyd (who wrote as J. E. Lloyd) (5 May 1861 – 20 June 1947), was a Welshhistorian, the author of the first serious history of the country's formative years, A History of Wales from the Earliest Times to the Edwardian Conquest, 2 vols. London: Longmans, Green & Co., 1911; Second edition 1912; Third edition 1939.
Another of his great works was Owen Glendower: Owen Glyn Dŵr, Oxford: Clarendon Press, 1931. For his achievements in the field, he was knighted in 1934. Under his editorship, the first edition of the Dictionary of Welsh Biography was compiled, though not published until after his death (1950).