The Muckleshoot are a Lushootseed-speaking Native American tribe, part of the Coast Salish peoples of the Pacific Northwest. They are descendants of the Duwamish peoples whose traditional territory was located along the Green and White rivers, including up to the headwaters in the foothills of the Cascade Mountains, in present-day Washington State. Since the mid-19th century, their reservation is located in the area of Auburn, Washington, about 15 miles (24 km) northeast of Tacoma and 35 miles (56 km) southeast of Seattle.

Lushootseed, formerly known as Puget Salish, Puget Sound Salish, or Skagit-Nisqually, is a Central Coast Salish language of the Salishan language family. Lushootseed is the general name for the dialect continuum composed of two main dialects, Northern Lushootseed and Southern Lushootseed, which are further separated into smaller sub-dialects.