Norris de Mouilpied Darrell, Jr. (1899–1989) was an American attorney and President of the American Law Institute from 1961 to 1976. He graduated from the University of Minnesota Law School, and was the son-in law of Judge Learned Hand. He clerked for United States Supreme Court Justice Pierce Butler and joined the New York law firm Sullivan and Cromwell in 1925. His grandson Trevor Darrell is a computer-vision researcher.