Silex is any of various forms of ground stone.

Silex may also refer to:

Places Silex, Arkansas, unincorporated community Silex, Missouri, village in Lincoln County, Missouri, United States

Other Paul Silex (1858–1929), German ophthalmologist Proctor Silex, company that produced vacuum coffee makers and other small appliances Silex (website builder), free and open source HTML website builder Separation of isotopes by laser excitation, technique for uranium enrichment