Michel Plancherel (French pronunciation: [miʃɛl plɑ̃ʃʁɛl]; 16 January 1885 – 4 March 1967) was a Swiss mathematician.

He was born in Bussy (Canton of Fribourg, Switzerland) and obtained his Diplom in mathematics from the University of Fribourg and then his doctoral degree in 1907 with a thesis written under the supervision of Mathias Lerch.

Plancherel was a professor in Fribourg (1911), and from 1920 at ETH Zurich.

He was married to Cécile Tercier, had nine children, and presided at the Mission Catholique Française in Zürich.

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