What is the name of pacific northwest were called?

The Pacific Northwest doesn't have a single official name other than "Pacific Northwest." However, some historical names and other terms have been used to refer to the region:

* Columbia River Region: This term was used in the early 19th century, referring to the area around the Columbia River.

* Oregon Country: This name was used during the 1800s when the region was claimed by both the United States and Great Britain.

* Cascadia: This term is a relatively modern name, based on the Cascade Range that runs through the region. It's often used by environmentalists and separatists who envision a distinct political entity for the region.

While those terms are sometimes used, "Pacific Northwest" remains the most widely accepted and used name for the region.