Bor-ming Jahn (Chinese: 江博明; pinyin: Jiāng Bómíng; 24 August 1940 – 1 December 2016) was a Taiwanese-French geochemist. Born in Miaoli on 24 August 1940, Jahn graduated from Hsinchu Senior High School and attended National Taiwan University, where, in 1963, he earned a bachelor's degree in geology. He obtained a master's degree in geochemistry from Brown University in 1967, and completed a doctorate at the University of Minnesota in 1972. After postdoctoral work and further research at NASA and the Lunar Science Institute, Jahn moved to France and joined the University of Rennes I faculty in 1976. Jahn acquired French nationality in May 1980. In 2003, he returned to Taiwan, serving as distinguished research fellow affiliated with the Institute of Earth Sciences, Academia Sinica from August