卡姆奇亚河（保加利亚语：Камчия）是保加利亚东部的一条河流，长245公里，流域面积5,358平方公里。

发源于巴尔干山脉东部，向东流入黑海。

The Kamchiya (also Kamchia and Kamčija, Bulgarian: Камчия) is a 244.5 km long river in eastern Bulgaria, the longest river on the Balkan Peninsula to flow directly into the Black Sea. It starts from the confluence of two rivers springing from Eastern Stara Planina, Golyama Kamchiya (itself formed by the confluence of the rivers Ticha and Vrana) and Luda Kamchiya, flows eastward to the Black Sea and empties into it 25 km south of Varna, in the Resort of Kamchiya.