Camarasa is a municipality in the comarca of the Noguera, in Catalonia, Spain. It is situated at the confluence of the Segre and Noguera Pallaresa rivers.
The area is notable for its hydroelectric infrastructure. The Camarasa reservoir on the Noguera Pallaresa, with a capacity of 113 hm³, and the Sant Llorenç de Montgai reservoir on the Segre are both important hydroelectric power stations.