Denier

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
 * Robert E. DeNier (1921–2010), American politician
 * 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