| Cedar Run | |
|---|---|
| Country | United States |
| Basin features | |
| Main source | Virginia |
| River mouth | Occoquan River |
| Physical characteristics | |
| Length | 37.5 miles (60.4 km) |
Cedar Run is a 37.5-mile-long (60.4 km) tributary of the Occoquan River in the U.S. state of Virginia.
Coordinates: 38°41′17″N 77°29′19″W / 38.68817°N 77.48860°W