Bjelovacka, also sometimes called Bjelovarska, is a small river and tributary of the ÃÂesma river. It flows in the vicinity of the city of Bjelovar.
Bjelovacka forms at the mouth of two small streams named Jelinec and SeÃÂa north of Veliko Trojstvo, both of which originate from the slopes of Bilogora. South of Bjelovar, within Veliko Korenovo and Narta it flows into the ÃÂesma.
Older names include , or , and in Hungarian sources . And in some even older sources the river was known by the name ÃÂesmica or Chesmicha.
Bjelovacka flows through Veliko Trojstvo, Grginac, Prokljuvani, Trojstveni Markovac, Novoseljani, Brezovac and Veliko Korenovo until it flows into the ÃÂesma river near Narta. Bjelovacka is fully regulated into a canal due to its historical tendency to flood. Historically it formed swamp-like conditions east of Bjelovar.
In the vicinity of Bjelovacka, within the Lug forest, the remains of a larger Roman rural settlement have been found, as well as archaeological findings dating to antiquity of glass and ceramics.
There are various species of fish found in Bjelovacka, and it is a site of sport fishing. There are several fishing ponds next to it, the largest of which is the artificial lake of Lug near the forest of the same name, which is owned by <bdi>Ã Â RD (In ) "Bjelovacka" Lug-Trojstveni Markovac.</bdi>