Bosanka (Bosnian women) is a river in central Bosnia. It is a right tributary of the Vrbanja river. It rises on the southern slopes of the Uzlomac mountain (elevation about ) in four streams. The length is about . Flowing through Petrovići, and its mouth in Vrbanja river is between the villages of Dabovci and Dudići. The mouth of the river is downstream from Vrbanjci, along highway M-4 (Banja Luka - Doboj). 