For the historical entity Principality of Nitra, follow the link.

Nitra ( pronunciation ; also known by other alternative names) is a city in western Slovakia, situated at the foot of Zobor Mountain in the valley of the river Nitra. With a population of about 80 524, it is the fifth largest city in Slovakia. Nitra is also one of the oldest cities in Slovakia; it was the political center of the Principality of Nitra. Today, it is a seat of a kraj (Nitra Region) and an okres (Nitra District).