| Tso Wong Man-yin 曹王敏賢 | |
| Honorific-Suffix: | BBS |
| Birth Date: | 1944 10, df=yes |
| Birth Place: | Beijing, China |
| Office: | Member of the Provisional Legislative Council |
| Term Start: | 21 December 1996 |
| Term End: | 30 June 1998 |
| Alma Mater: | Chinese University of Hong Kong (BSc) University of Miami (MSc) University of Wisconsin-Madison (PhD) |
| Occupation: | Teacher |
| Party: | PA/DAB |
| Spouse: | Tso Wung-Wai |
| Children: | 1 son |
Marianne Tso Wong Man-yin BBS FRSC (born 30 October 1944, Beijing) is a Hong Kong chemist.
Graduated from the Chinese University of Hong Kong, she obtained her master's degree at the University of Miami and doctoral degree at the University of Wisconsin-Madison. She continued her post-doctoral study at the Stanford University Medical Center. She is a fellow of the Royal Society of Chemistry and worked as the director of the Radioisotope Unit at the University of Hong Kong.[1]
She was also the member of the Provisional Legislative Council (1996–98), member of the Chinese People's Political Consultative Conference National Committee and the executive committee member of the pro-Beijing political party Democratic Alliance for the Betterment and Progress of Hong Kong.[2]
Her husband, Tso Wung-Wai, is also a well-known chemist and politician.