| Lin Ruey-shiung 林瑞雄 | |
| Other Name: | Ruey S. Lin |
| Nationality: | Empire of Japan (until 1945) Republic of China (since 1945) |
| Birth Date: | 17 December 1940 |
| Birth Place: | Tainan, Taiwan, Empire of Japan |
| Alma Mater: | National Taiwan University University of Heidelberg Johns Hopkins University |
| Occupation: | Academic |
| Profession: | Professor of public health |
Lin Ruey-shiung (; born 17 December 1938) is a Taiwanese physician and professor in public health. He was the vice presidential nominee of the People First Party ticket for the 2012 Taiwan presidential race, running with James Soong. Prior to his vice presidential run, Lin never held political or elected office.
A native of Tainan, Lin earned medical (M.D., 1965) and public health degrees (M.P.H., 1967) from National Taiwan University, a doctorate in epigenetics (Dr. Med., 1970) from the University of Heidelberg in Germany, and a Doctor of Public Health (Dr.P.H., 1977) degree from Johns Hopkins University in Baltimore, Maryland. He has taught at the National Taiwan University Medical School, the University of Kansas, and the University of Maryland. He was a professor at National Taiwan University's School of Public Health from 1985 to 2006 and served as the school's dean from 1987 to 1993.
PFP chairman James Soong chose Lin to be his ticket's vice presidential nominee in late-September 2011.[1] Lin, a political novice, had to renounce his American citizenship (he had held dual citizenship of the United States and the Republic of China) in order to be an eligible candidate.[2]
Lin claimed that for three consecutive nights, beginning Sept. 20, his residence was attacked by electromagnetic waves and that he had to flee to a hotel.[3]