Pierre Jacquinot (18 January 1910 – 22 September 2002) was a French physicist.
Jacquinot was a PhD student of Aimé Cotton.[1] He was director of Laboratoire Aimé-Cotton during almost 20 years (1951-1962 and 1969-1978). From 1962 to 1969 he was appointed director general of CNRS.[2]
In 1966 he entered the French Academy of Sciences. He became its president from 1980 to 1982.