Nižná may refer to several villages and municipalities in Slovakia:
A village is a clustered human settlement or community, larger than a hamlet, but smaller than a Town or City. A municipality is an administrative entity composed of a clearly defined territory and its population and commonly denotes a City, Town, or Village, or Slovakia (long form Slovak Republic; Slovak:, long form, is a Landlocked country in Central Europe with a population of over five million Nižná is a Village and Municipality in Piešťany District in the Trnava Region of western Slovakia. Nižná is a Village and Municipality in Tvrdošín District in the Žilina Region of northern Slovakia.