Janet Norton Lee Bouvier Auchincloss (December 3, 1907 – July 22, 1989) was an American socialite. She was the mother of former United States First Lady Jacqueline Kennedy Onassis and Lee Radziwill. She often stood in for her daughter Jacqueline as hostess for official White House functions. She was the mother-in-law of United States President John F. Kennedy.