Westfir is a city in Lane County, Oregon, United States. It is located about 35 miles south of Eugene and about four miles west of Oakridge in the Willamette National Forest. According to the United States Census Bureau, the city has a total area of 0.3 square miles (0.78 Square Kilometer), of which 0.3 square miles (0.78 Square Kilometer) is land and 2.86% is water. Oregon's longest existing covered bridge, the Office Bridge, was built across the North Fork Middle Fork Willamette River in 1944 to connect the Westfir Lumber Company mill to the main office.
Westfir students are served by the Oakridge School District, which has an elementary, middle, and high school in Oakridge. Westfir High School closed in 2006, after serving for a time as the district's middle school. The Westfir school district merged with the Oakridge school district in 1967.