The Nitra (Slovak: Nitra, , ) is a river in western Slovakia. It flows into the Váh river in KomoÃÂa. Its source is in the Malá Fatra (Lesser Fatra) mountains north of Prievidza. The river Nitra passes through the towns of Bojnice, TopoþÃÂany, Nitra and Nové Zámky. It is long and its basin size is . The old branch of the Nitra, Stará Nitra, branches off near Nové Zámky and flows into the Váh close to its confluence with the Danube in Komárno.