Marcel Nicolet

Marcel Nicolet (1912–1996) was a Belgian physicist and meteorologist.

Nicolet was born in , Belgium on February 26, 1912. He received a degree in physics in 1934 after writing a dissertation on the spectrum of O and B stars

He became one of the main promoters and finally secretary general of the International Geophysical Year, that due to the participation of all important nations (except China) became a most important scientific exercise worldwide. Nicolet was elected as its secretary general. King Baudouin of Belgium granted him the title of Baron in 1987 for his important contribution to the success of the International Geophysical Year.

He received several highly esteemed prizes e.g. the William Bowie Medal of the American Geophysical Union in 1984.