Umatilla may refer to:

Umatilla people and culture

* Umatilla people, a Native American tribe from Oregon *

Umatilla Indian Reservation The Umatilla Indian Reservation is an Indian reservation in the Pacific Northwest of the United States. It was created by The Treaty of June 9, 1855 between the United States and members of the Walla, Cayuse, and Umatilla tribes. It lies in nort ...

, an Indian reservation in Oregon * Umatilla language, a Native American language from the Plateau Penutian group *

Confederated Tribes of the Umatilla Indian Reservation The Confederated Tribes of the Umatilla Indian Reservation are the federally recognized confederations of three Sahaptin-speaking Native American tribes who traditionally inhabited the Columbia River Plateau region: the Cayuse, Umatilla, and ...

, a Native American tribal entity in the U.S. state of Oregon

Places

* Umatilla County, Oregon, a county in Oregon *

Umatilla, Oregon Umatilla (, ) is a city in Umatilla County, Oregon, United States. The population in 2010 was 6,906, but the city's population includes approximately 2,000 inmates incarcerated at Two Rivers Correctional Institution. Umatilla is part of the ...

, a city located in Umatilla County, Oregon * Umatilla, Florida, a city in Lake County, in the U.S. state Florida * Umatilla River, a river in Oregon *

Umatilla Chemical Depot The Umatilla Chemical Depot, (UMCD) based in Umatilla, Oregon, was a U.S. Army installation in the United States that stored chemical weapons. The chemical weapons originally stored at the depot consisted of various live munitions and storage con ...

, a U.S. Army facility near the city of Umatilla, Oregon {{disambig