Fall Creek is an unincorporated community in Lane County, Oregon, United States, southeast of Eugene/Springfield. Nearby communities include Dexter to the south, Lowell to the southeast, and Jasper to the northwest. The locale was named for Fall Creek, a stream originating in Willamette National Forest and flowing into the Willamette River just below the community. Fall Creek Reservoir lies upstream. Fall Creek is in the zip code 97438.