The Teskey Ala-Too or Terskey Ala-Too (, ) is a mountain range in the Tian Shan mountains in Kyrgyzstan. It stretches south and southeast of Lake Issyk Kul, from the river Joon Aryk near Kochkor in the west to the far northeastern part of Kyrgyzstan. The length of the range is 354 km and the highest peak is Karakol Peak (5,216 m). Another high peak is Boris Yeltsin Peak (5,168 m).