The Kökömeren (Kyrgyz: Көкөмерен) is a right tributary of the Naryn located in Chüy Region (Jayyl District) and Naryn Region (Jumgal District) of Kyrgyzstan.

It is 199 kilometres (124 mi) long, and has a drainage basin of 10,400 square kilometres (4,000 sq mi), with an average discharge of 80.3 cubic metres per second (2,840 cu ft/s).

[1] It possesses significant hydro-power potential.

[2] In June 2011, China and Kyrgyzstan signed a protocol of intent to begin construction of Kökömeren River chain of power plants in 2012.

[3] Whitewater rafting and fishing are popular tourist activities on the Kökömeren.