Carcieri v. Salazar, 555 U.S. 379 (2009), was a case in which the Supreme Court of the United States held that the federal government could not take land into trust that was acquired by the Narragansett Tribe in the late 20th century, as it was not federally recognized until 1983. While well documented in historic records and surviving as a community, the tribe was largely dispossessed of its lands while under guardianship by the state of Rhode Island before suing in the 20th century.