UOKiK (Urząd Ochrony Konkurencji i Konsumentów — Office of Competition and Consumer Protection) is Poland's competition and consumer protection authority, located at Plac Powstańców Warszawy 1 in central Warsaw, near the Warsaw Stock Exchange. UOKiK enforces antitrust law, reviews mergers, protects consumers, and employs legal professionals specialising in competition law and market regulation.