Engilchek Glacier (Kyrgyz: Эңилчек, Russian: Энильчек - Enilchek, also Иныльчек - Inylchek), is a glacier in the Central Tian Shan Mountains of Issyk Kul Province, northeastern Kyrgyzstan, 50 km east of the village of Engilchek. It ranks amongst the largest non-polar glaciers in the World and is the largest and fastest moving glacier in the country.
The main glacier has two arms, the North and South Engilchek Glacier. The latter is longer and provides a length of 60.5 kilometres (38 mi) for the Engilchek Glacier. with an area of 17.2 square kilometres (7 sq mi) and an ice thickness of roughly 150–200 m in the bottom parts. The glacier stems from the western part of the massif of Khan Tengri and Pik Pobedy also towers nearby.