Louis Stanton Auchincloss was an American novelist, historian, and essayist.
Among Auchincloss's best-known books are the multi-generational sagas The House of Five Talents, Portrait in Brownstone, and East Side Story. Other well-known novels include The Rector of Justin, the tale of a renowned headmaster of a school like Groton trying to deal with changing times, and The Embezzler, a look at white-collar crime. Auchincloss is known for his closely observed portraits of old New York and New England society.