Denier may refer to: * the French form of ''denarius'' (penny) ** French denier (penny), a type of medieval coin ** Denier (unit), a unit of linear mass density of fibers ** ''Denier'', also ''Denyer'', a French and English surname (probably a metonymic occupational name for a provider of commodities or a moneyer / minter), hence also a (rare) given name *** Jacques Denier (1894-1983), French painter *** Lydie Denier, French actress *** C. Denier Warren, American TV and film actor *the agent noun of "deny", see Denial (disambiguation) ** Denialism ** ''The Deniers'', a 2008 book by Canadian environmentalist Lawrence Solomon * Denier, Pas-de-Calais, France

See also