Duwamish Tribe
| Named after | Duwamish people |
|---|---|
| Predecessor | Duwamish Indian Tribe |
| Formation | 1925, nonprofit: 1979 |
| Founded at | Seattle, Washington |
| Type | Nonprofit organization |
| EIN 91-1122115 | |
| Legal status | active |
| Purpose | P84: Ethnic, Immigrant Centers and Services |
| Location | |
Official language | English |
Chairwoman | Cecile Hansen |
| Revenue | $4,785,159 (2022) |
| Expenses | $1,758,046 (2022) |
| Staff | 12 (2022) |
| Website | duwamishtribe |
The Duwamish Tribe, officially known as the Duwamish Tribal Organization, is an unrecognized tribe of Duwamish people (Lushootseed: dxʷdəwʔabš), and those who identify as their descendants, based in Seattle, Washington.
The Duwamish Tribe is an unrecognized tribe. They are neither a federally recognized tribe nor a state-recognized tribe. They have petitioned for federal recognition as the Duwamish Indian Tribe several times, most recently in 2019, but were denied. 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.