Professor François Diederich (9 July 1952 – 23 September 2020) was a Luxembourgian chemist. His works focused in organic chemistry. Diederich was born in Ettelbruck, Luxembourg. In 1992 he was appointed Professor of Organic Chemistry at ETH Zurich. He retired on July 31, 2017. He was a foreign member of the American Academy of Arts and Sciences and National Academy of Sciences.