Bly is an unincorporated community in Klamath County, Oregon, United States. By highway, it is about 50 miles east of Klamath Falls. As of 2020, the population was 207. Bly is in southeastern Klamath County, slightly west of Lake County, along Oregon Route 140. By highway, it is about 37 miles west of Lakeview and 50 miles east of Klamath Falls.