| Whitewater River | |
| Name Other: | Tributary to Keowee River |
| Map Size: | 300 |
| Pushpin Map: | USA North Carolina#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Hyco River mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | North Carolina South Carolina |
| Subdivision Type3: | County |
| Subdivision Name3: | Oconee (SC) Jackson (NC) Transylvania (NC) |
| Length: | 12.08miles[1] |
| Discharge1 Location: | Keowee River (Lake Jocassee) |
| Discharge1 Avg: | 75.7cuft/s at mouth with Keowee River[2] |
| Source1: | divide between Whitewater River and Chattooga River |
| Source1 Location: | about 0.5 miles south of Chimneytop Mountain |
| Source1 Coordinates: | 35.0914°N -83.065°W[3] |
| Source1 Elevation: | 3550feet[4] |
| Mouth: | Keowee River |
| Mouth Location: | Lake Jocassee |
| Mouth Coordinates: | 34.9764°N -82.9342°W |
| Mouth Elevation: | 1108feet |
| Progression: | northwest |
| River System: | Keowee River |
| Tributaries Left: | Silver Run Happy Hollow Democrat Creek Waddle Branch Corbin Creek |
| Tributaries Right: | Little Whitewater River |
| Waterbodies: | Lake Jocassee |
| Bridges: | NC 107 (x2), Whitewater Road |
The Whitewater River is a 14.6adj=midNaNadj=mid river that flows south from headwaters in Transylvania County, North Carolina, over Upper Whitewater Falls and Lower Whitewater Falls before crossing into South Carolina and entering Lake Jocassee, the reservoir behind Lake Jocassee Dam.
In Lake Jocassee the Whitewater River is joined by the Toxaway River to form the Keowee River. The confluence is submerged beneath the waters of Lake Jocassee. Via the Keowee and Seneca rivers, the Whitewater River is part of the Savannah River watershed.