The Crkvenica (Serbian Cyrillic: Црквеница) is a Bosnian river. It is a right bank tributary of the Vrbanja River. Crkvenica rises between the northwestern slopes of Očauš and Šipraška brda mountains, flowing southeast at around 1,200 metres (3,900 ft) above sea level. The river drains the central part of the northern slopes of the Dinaric mountain massif and its mouth is in Šiprage (Kotor Varoš) with a length of 12 kilometres (7.5 mi). The river is known for its water mills; during the 1950s, they numbered approximately 18.