Karlovy VaryPronunciation: /ˌkɑːləvɪ ˈvɑːri/Definition of Karlovy Vary a spa town in the western Czech Republic; population 50,940 (2007). It is famous for its alkaline thermal springs. German name Karlsbad /ˈkarlsbaːt/. Karlovy Vary in other Oxford dictionaries Definition of Karlovy Vary in the US English dictionary