Frank Laurence Lucas (28 December 1894 – 1 June 1967) was an English classical scholar, literary critic, poet, novelist, playwright, political polemicist, Fellow of King's College, Cambridge, and intelligence officer at Bletchley Park during World War II. He is now best remembered for his scathing 1923 review of T. S. Eliot's The Waste Land, and for his book Style (1955; revised 1962), an acclaimed guide to recognising and writing good prose. His Tragedy in Relation to Aristotle's 'Poetics' (1927, substantially revised in 1957) was for over fifty years a standard introduction.