Kalnitsa
General data
- Name: Kalnitsa
- Water system: Maritsa (Evros)
- Water type: River
- Progression: Sinapovska reka -> Tundzha -> Maritsa (Evros) -> Aegean Sea -> Mediterranean Sea -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: Europe
- Countries: Bulgaria
The Kalnitsa is a 72 km long river in southern Bulgaria, a right tributary of the river Sinapovska reka. It is the largest tributary of the Sinapovska reka and is longer than the latter. The river takes its source under the name Tekirya at an altitude of 203 m in the Svetiiliyski Heights. It flows into the Sinapovska reka at an altitude of 97 m west of the latter's confluence with the Tundzha. Its drainage basin covers a territory of 577 km2.
