The Hoodoo Ridge Lookout is a historic fire lookout in the Umatilla National Forest (Walla Walla Ranger District) near Troy, Oregon, in the United States. It was added to the National Register of Historic Places as a historic district on May 26, 2015.
Built starting in 1925 and operating until the 1970s, the site served as a United States Forest Service fire lookout. The district includes three contributing buildings and two contributing structures. The site contains a 1925 crows nest, a 1933 lookout tower, a 1933 cabin and garage, and an outhouse that may have been contemporaneous.