Blue Creek is an unincorporated community in western Jefferson Township, Adams County, Ohio, United States. It is located along State Route 125.
Although it is unincorporated, it has a post office, with the ZIP code of 45616. The Blue Creek post office was established in 1844.
Blue Creek was the birthplace of country music singer Cowboy Copas (1913-1963). 
Blue Creek community sign.
Looking east on Ohio Highway 125 in Blue Creek.
- ^ Zip Code Lookup
- ^ Evans, Nelson Wiley (1900). A History of Adams County, Ohio: From Its Earliest Settlement to the Present Time. E B. Stivers. p. 431.
- ^ "Cowboy Copas", in Country Music: The Rough Guide, Kurt Wolff and Orla Duane, editors (Rough Guides, 2000) pp107-108
Coordinates: 38°46′39″N 83°19′49″W / 38.77750°N 83.33028°W