Stak Valley (Urdu: استک نالہ, Balti: སྟཀ ནལ་) is a valley in the Roundu Subdivision of District Skardu, in the Gilgit-Balitistan territory of Pakistan.

The valley is on the right bank of the Indus River, between the cities of Skardu and Giligit.

The valley has been one of the very important regions of the area in term of in history and of geological formation as well.

[1] Stak Valley is situated in the middle of Skardu and Gilgit city on the right bank of the Indus River and Gilgit-Skardu Road.

The prominent landmarks around the Stak valley are: Kutia Lungma Glacier, Goropha Glacier (which joins the Chogo Lungma Glacier), Haramosh Peak (7,397 m, 24,270 ft), Pharabar Peak (60,321 m 20,740 ft), Stak-La (Stak Mountain Pass 4,601 m, 15,491 ft) and some other peaks (Shinka, Mashika, Korang Kar) which are about 6,000 m (20,000 ft).