Nooksack Cirque is in North Cascades National Park in the U.S. state of Washington, on the eastern slopes of Mount Shuksan.

[2] Nooksack Cirque was formed by glaciers and the East Nooksack Glacier is located in the cirque below the headwall known as Jagged Ridge.

The cirque extends from a subpeak of Mount Shuksan called Nooksack Tower to Seahpo Peak, a distance of over 2 mi (3.2 km) in width.

[1] Nooksack Cirque streams and meltwater from the East Nooksack Glacier form the headwaters for the Nooksack River.