Dame Mary Barbara Hamilton Cartland (9 July 1901 – 21 May 2000) was a British author celebrated as one of the most prolific and best-selling romance novelists of the 20th century. Over her lifetime, she wrote more than 700 novels, translated into dozens of languages, with worldwide sales exceeding 750 million copies. Her stories, often set in historical periods, emphasized themes of love, virtue, and moral integrity.

Born in Edgbaston, Birmingham, Cartland began her writing career as a society columnist before publishing her first novel, Jig-Saw (1923). She quickly became known for her formula of chaste yet passionate romances, typically featuring young heroines and gallant heroes. Many of her works were adapted into films and television productions, and her glamorous public image—complete with her trademark pink outfits—made her a cultural icon.

Cartland also wrote biographies, plays, and guides on etiquette, and she was involved in public service and charity work. She was made a Dame of the British Empire in 1991 for her contributions to literature and humanitarian causes. Cartland continued writing until her death in 2000, leaving behind a legacy as one of the most famous romance authors in publishing history.