Ernest Weekley (27 April 1865 - 7 May 1954) was a British philologist, best known as the author of a number of works on etymology. His An Etymological Dictionary of Modern English (1921) (850 pages) has been cited as a source by most authors of similar books over the 90 years since it was published. From 1898 to 1938, he was Professor of Modern Languages at the University of Nottingham.