- Cape Cod, Barnstable County, Massachusetts, United States1
- Cape Verde Islands, Cape Verde, Africa1
- Cape of Good Hope, Western Cape, South Africa1
- Castle Pinckney (S.C.)1
- Charleston (S.C.)1
- Charleston County (SC)1
- Charleston Harbor, Charleston County, South Carolina, United States1
- Charleston Harbor, Charleston, Charleston County, South Carolina, United States1
- Charleston Neck, Charleston County, South Carolina, United States1
- Charlotte Harbor, Charleston County, South Carolina, United States1
- Charlotte Harbor, Charlotte County, Florida, United States1
- Christian Creek, Augusta County, Virginia, United States1
- Clear Creek, Morgan County, Tennessee, United States1
- Dead Sea1
- Delaware River1
- Demerara-Mahaica, Guyana1
- Democratic Socialist Republic of Sri Lanka1
- Egypt1
- Etowah River, Alabama, United States1
- Etowah River, Cass County, Georgia, United States1