Sope Creek is an 11.6-mile-long (18.7 km) stream located in Cobb County, Georgia, United States. It is a significant tributary of the Chattahoochee River. It was known as Soap Creek during the 19th century. A section of Sope Creek runs through the Chattahoochee River National Recreation Area. The Sope Creek Ruins are listed on the National Register of Historic Places.