姆雷日尼察河是克罗地亚的河流，河道全长63公里，流域面积64平方公里，发源自斯卢尼附近，河道上有93座瀑布，河畔城镇有杜加雷萨和卡尔洛瓦茨。

The Mrežnica is a river in Karlovac County, Croatia. It is 63 kilometres (39 mi) long and its basin covers an area of 64 square kilometres (25 sq mi).

Mrežnica is considered special due to its large number of waterfalls, totalling 93. It rises in Kordun, west of Slunj, and flows northwards, in parallel to Dobra and Korana, through Generalski Stol and Duga Resa, when it finally flows into the Korana in the south of Karlovac (at Mostanje/Turanj).