Jennet Conant (born 15 July 1959) is an American non-fiction author and journalist. She has written four books about World War II, three of which have appeared on the New York Times Best Seller list: Tuxedo Park: A Wall Street Tycoon and the Secret Palace of Science that Changes the Course of WWII, 109 East Palace: Robert Oppenheimer and the Secret City of Los Alamos, The Irregulars: Roald Dahl and the British Spy Ring in Wartime Washington, and A Covert Affair: Julia Child and Paul Child in the OSS.