Nouveau riche (French for 'new rich'; French: [nuvo ʁiʃ]) is a term used, usually in a derogatory way, to describe those whose wealth has been acquired within their own generation, rather than by familial inheritance. The equivalent English term is the new rich or new money (in contrast to old money; French: vieux riche [vjø ʁiʃ]).

Sociologically, nouveau riche refers to the person who previously had belonged to a lower social class and economic stratum (rank) within that class and implies that the new money, which constitutes their wealth, allowed upward social mobility and provided the means for conspicuous consumption, the buying of goods and services that signal membership in an upper class.