Richard Chenevix Trench (Richard Trench until 1873; 9 September 1807 – 28 March 1886) was an Anglican archbishop and poet.
In 1851 he established his fame as a philologist by The Study of Words, originally delivered as lectures to the pupils of the Diocesan Training School, Winchester. His purpose, as stated by himself, was to show that in words, even taken singly, "there are boundless stores of moral and historic truth, and no less of passion and imagination laid up"—a truth enforced by a number of most apposite illustrations. It was followed by two little volumes of similar character—English Past and Present (1855) and A Select Glossary of English Words (1859). All have gone through numerous editions and have contributed much to promote the historical study of the English tongue. Another great service to English philology was rendered by his paper, read before the Philological Society, On some Deficiencies in our English Dictionaries (1857), which gave the first impulse to the great Oxford English Dictionary.