Michel Plancherel (16 January 1885  4 March 1967) was a Swiss mathematician. He was born in Bussy (Fribourg, Switzerland) and obtained his diploma in mathematics from the University of Fribourg in 1907. He was a professor in Fribourg (1911), and from 1920 at ETH Zurich.
He worked in the areas of mathematical analysis, mathematical physics and algebra, and is known for the Plancherel theorem ^{[1]} in harmonic analysis.
Outside of math he was married to Cécile Tercier, had nine children, and presided at the Mission Catholique Française in Zürich.
