The Naryn (Kyrgyz: Нарын, Uzbek: Norin) rises in the Tian Shan mountains in Kyrgyzstan, Central Asia, flowing west through the Fergana Valley into Uzbekistan.

It is 807 kilometres (501 mi) long (together with its upper course Chong-Naryn) and drains a basin area of 59,100 square kilometres (22,800 sq mi).

The largest of these is the Toktogul Reservoir in Kyrgyzstan containing 19.9 cubic kilometres (16,100,000 acre⋅ft) of water.

Dams downstream of the Toktogul in Kyrgyzstan include: Kürpsay, Tash-Kömür, Shamaldy-Say and Üch-Korgon.

[2] Some places along the river: Kyrgyzstan: Kara-Say (see Barskoon), Naryn Region, Naryn, Dostuk, Jalal-Abad Region, Kazarman, Toktogul Reservoir, Kara-Köl, Tash-Kömür.