Rosalie Matilda Kuanghu Chou (Chinese: 周光瑚; 12 September 1917 or 1916 – 2 November 2012) was a Chinese-born Eurasian physician and author better known by her pen name Han Suyin (Chinese: 韓素音). She wrote in English and French on modern China, set her novels in East and Southeast Asia, and published autobiographical memoirs which covered the span of modern China. These writings gained her a reputation as an ardent and articulate supporter of the Chinese Communist Revolution. She lived in Lausanne, Switzerland, for many years until her death.