Duwamish Tribe

The Duwamish Tribe, officially known as the Duwamish Tribal Organization, is a Seattle-based organization of Duwamish people (Lushootseed: dxʷdəwʔabš), and those who identify as their descendants. The organization is currently neither a federally recognized tribe nor a state-recognized tribe.

The Duwamish Tribe has sought federal acknowledgment as the Duwamish Indian Tribe several times. The Bureau of Indian Affairs currently lists the petition as supplementing its documented petition under the 2015 acknowledgment regulations.

In 2022, the Duwamish Tribe filed a lawsuit against the US Department of Interior (DOI) in a US District Court seeking a judicial declaration that they were federally recognized. In 2025, the court ordered the DOI to reconsider the Tribe's petition for federal recognition under the 2015 regulations.

The Duwamish Tribe has operated the Duwamish Tribal Services since 1983, a nonprofit dedicated to serving the needs of their members.