The Dunajec (Polish pronunciation: [duˈnajɛt͡s]) is a river running through southern Poland. It is a right tributary of the Vistula River. It begins in Nowy Targ at the junction of two short mountain rivers, Czarny Dunajec and Biały Dunajec (Black and White Dunajec). Dunajec forms a border between Poland and Slovakia for 27 kilometers in the Pieniny Środkowe (Slovak: Centrálne Pieniny) range, east of the Czorsztyn reservoir. It is the only river taking waters from the Slovak territory to the Baltic Sea.