Anna Harriette Leonowens (born Ann Hariett Emma Edwards; 5 November 1831 – 19 January 1915) was an Anglo-Indian or Indian-born British travel writer, educator, and social activist. She became well known with the publication of her memoirs, beginning with The English Governess at the Siamese Court (1870), which chronicled her experiences in Siam (modern Thailand), as teacher to the children of the Siamese King Mongkut. Leonowens' own account was fictionalised in Margaret Landon's best-selling novel Anna and the King of Siam (1944), as well as adaptations for other media such as Rodgers and Hammerstein's 1951 musical The King and I.