Yeo Ning Hong DUBC (Chinese: 杨林丰; pinyin: Yáng Línfēng; born 3 November 1943) is a Singaporean chemist and former politician. He served as Minister for Defence from 1991 to 1994, and Minister for Communications from 1984 to 1991. A former member of the governing People's Action Party (PAP), he was the Member of Parliament (MP) for Kim Seng SMC from 1980 to 1991 and later the Kim Seng division of Kampong Glam GRC from 1991 to 1996
Yeo studied in University of Singapore and also graduated with a PhD from the University of Cambridge.[2] He was also a research fellow of Christ's College, Cambridge between 1970 and 1973.
Since retiring from politics, Yeo has served as the Executive Chairman of the Singapore Technologies Group and the Chairman of the Port of Singapore Authority. He has also published several books under the pen name "Adrian Yeo".[3]