Sunday Creek is a tributary of the Hocking River, 27.2 miles (43.8 km) long, in southeastern Ohio in the United States. Via the Hocking and Ohio Rivers, it is part of the watershed of the Mississippi River, draining 139 square miles (360 km2) in a mainly rural area of the Allegheny Plateau region.
Its name is locally said to derive from early white settlers who in 1802 reached the creek on a Sunday, and so named it after the day of their discovery. (also see nearby Monday Creek.) 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.