The Kamnik Bistrica (Slovene: Kamniška Bistrica, pronounced [ˈkáːmniʃka ˈbíːstrit͡sa]) is an Alpine river in northern Slovenia, a left tributary of the Sava River. It springs from the Kamnik Alps (part of the Southern Limestone Alps) near the border with Austria. It is 33 km (21 mi) long. The Kamnik Bistrica flows through the town of Kamnik, where it is fed by the Nevljica River.