Lutz (; born 12 December 1940) is an American linguist who specializes in the use of plain language and the avoidance of doublespeak (deceptive language).
He wrote a famous essay The World of Doublespeak on this subject as well as the book Doublespeak? His original essay and the book described the four different types of doublespeak (euphemism, jargon, gobbledygook, and inflated language) and the social dangers of doublespeak.