Twana is the collective name for a group of nine Coast Salish peoples in the northern-mid Puget Sound region. The Skokomish are the main surviving group and self-identify as the Twana today. The spoken language, also named Twana, is part of the Central Coast Salish language group. The Twana language is closely related to Lushootseed.

Puget Sound is a sound on the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected marine waterways and basins. A part of the Salish Sea, Puget Sound has one major and two minor connections to the Strait of Juan de Fuca, which in turn connects to the open Pacific Ocean. The major connection is Admiralty Inlet; the minor connections are Deception Pass and the Swinomish Channel.