Elk River may refer to:
Municipalities Elk River, California, a small community located at the edge of Eureka, California Elk River, former name of Elk, Mendocino County, California Elk River, Idaho Elk River, Minnesota
Rivers and related topography Canada Elk River (Alberta) Elk River (British Columbia) Elk River (Northwest Territories), see List of rivers of the Northwest Territories Elk River (Vancouver Island), on Vancouver Island, British Columbia Elk River Mountains, on Vancouver Island, British Columbia, Canada
Poland Ełk River
United States Elk River (California) Elk River (Colorado) Elk River (Iowa) Elk River (Kansas) Elk River (Maryland) Elk River (Michigan) Elk River (Minnesota) Elk River (North Carolina–Tennessee) Elk River (Oklahoma), a stream in Oklahoma and Missouri Elk River (Oregon) Elk River (Tennessee) Elk River (Washington) Elk River (West Virginia)