Cauchy primarily refers to Augustin-Louis Cauchy (1789-1857), French mathematician.

Cauchy may also refer to:

People Daniel Cauchy (1930–2020), French actor and producer Louis François Cauchy (1760–1848), French government official and the father of the mathematician Cauchy Muamba (born 1987), Congolese Canadian football player

Places Cauchy (crater), a small lunar impact crater Cauchy-à-la-Tour, a commune in Hauts-de-France, France Estrée-Cauchy, a commune in Hauts-de-France, France Sauchy-Cauchy, a commune in Hauts-de-France, France

See also Cauchi, a Maltese surname List of things named after Augustin-Louis Cauchy