The Bobovica (Serbian Cyrillic: Бобовица) is the richest tributary of upper flow of Vrbanja river, although it is marked on some maps as "Kruševica".

The water source is on east acclivity of the Vijenac Hill (1,375 m), in the gorge which is exponed to Ciganska planina (Gipsy's Mountain), on the significant lower position compared with Vrbanja river.

It is conducting the waters from numerous creeks and the strongest tributaries are (on right) Ljeskovac and Duboki and Novački potok (Deep and Novak's stream, on left)[2][3].

To its mouth in Kruševo Brdo, it is longer than Vrbanja river.

[3][4][5] During the War in Bosnia (1992-1995), all of non-Serbs settlements in Vrbanja valley, from Bobovica's mouth to Banja Luka, were extremely devastated and local inhabitants (Bosniaks and Croats) killed and displaced.