Ci Kaengan (Cikaengan; Sundanese "Ci" means "river", so the whole name means "Kaengan River"; also written as “Ci Kaingan”; Indonesian: Sungai Cikaengan) is a river in the island of Java, Indonesia, that flows mainly in the Garut Regency of West Java province, about 210 km to the southeast of the capital Jakarta.

[4][5] In 2016 two Microhydroelectric power stations were built utilizing this river producing about 12 megawatts of electricity.

This led to the establishment of a river tubing attraction in the District of Banjarwangi.

[12] Ci Kaengan has a total length of 55.5 km (34.5 mi) with several tributaries and watercourses through some districts of Garut Regency.

[13] The flow that is seldom low during the dry season makes the river useful to develop into a micro-hydroelectric renewable energy source, Two projects have been started by some companies: PT Petro Hidro Optima (PLTM Cikaengan 5,1 MW), and PT Cikaengan Tirta Energi (PLTM Cikaengan 2 dengan daya 7,2 MW).