Sunday Creek is a tributary of the Hocking River, 27.2 miles (43.8 km) long, in southeastern Ohio in the United States.

Sunday Creek rises in southeastern Perry County and flows generally southwardly into northern Athens County, passing through the communities of Rendville, Corning, Glouster, Trimble, Jacksonville, and Millfield (site of the 1930 Millfield Mine disaster), to Chauncey, where it flows into the Hocking River.

[7] A 1997 study by the Ohio Environmental Protection Agency identified the lowermost thirteen miles of Sunday Creek as having been "irretrievably damaged to the extent that no appreciable aquatic life can be supported" due to the creek's low pH, caused by acid mine drainage.

[13] The lower areas of the creek are generally colored orange from the effects of acid-mine drainage during times of low water.

These pigments are intended for production and sale in the wholesale market, contributing to environmental sustainability by addressing water pollution issues caused by AMD.