Marie Benedict, born as Heather Marie Benedict, is an acclaimed American novelist and lawyer. She is known for her historical works that bring to light the stories of remarkable women. Writing under the pen name Marie Benedict, she is a New York Times and USA Today bestselling author. Some of her notable works include The Mitford Affair, Her Hidden Genius, The Mystery of Mrs. Christie, The Only Woman in the Room, Lady Clementine, Carnegie's Maid, and The Other Einstein.

Marie co-wrote the Good Morning America Book Club pick The Personal Librarian and Target Book of the Year The First Ladies with Victoria Christopher Murray. Her books have been translated into thirty languages and have been selected for various book clubs including Barnes & Noble Book Club, Target Book Club, Costco Book Club, Indie Next List, and LibraryReads List.

Her upcoming release is The Queens of Crime, set to launch on February 11, 2025, which explores the thrilling story of Agatha Christie's legendary rival, mystery writer Dorothy Sayers.