Marcel Locquin, born May 6, 1922 in Lyon, France, died March 18, 2009, was a French mycologist.
Locquin rose to eminence in the field of mycology over several years of work with a number of Nobel Prize winners. He himself has won numerous awards. He has worked as consultant for many international organizations. He has filed many patents in light and electron microscopy.
Locquin was a prolific writer. He authored 60 books. He published well over 350 articles, which dealt mostly on areas like biophysical techniques, biomathematics, , light and electron microscopy, mycology, taxonomy, smells, colors, origin of languages, transdisciplinary methods, computers and artificial intelligence, and sociology.