| Flat Branch | |
| Name Other: | Tributary to Fisher River |
| Map Size: | 300 |
| Pushpin Map: | USA North Carolina#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Flat Branch mouth |
| Pushpin Map Alt: | Map of Flat Branch mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | North Carolina |
| Subdivision Type3: | County |
| Subdivision Name3: | Surry |
| Length: | 2.92miles[1] |
| Discharge1 Location: | Fisher River |
| Discharge1 Avg: | 4.17cuft/s at mouth with Fisher River[2] |
| Source1: | Red Hill Creek and Mitchell River divides |
| Source1 Location: | about 2 miles southwest of Blevins Store, North Carolina |
| Source1 Coordinates: | 36.4353°N -80.8417°W[3] |
| Source1 Elevation: | 1360feet[4] |
| Mouth: | Fisher River |
| Mouth Location: | about 2 miles southeast of Blevins Store, North Carolina |
| Mouth Coordinates: | 36.4347°N -80.8008°W |
| Mouth Elevation: | 1118feet |
| Progression: | Fisher River → Yadkin River → Pee Dee River → Winyah Bay → Atlantic Ocean |
| River System: | Yadkin River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Red Hill Creek Road, W Rocky Lane, Fisher Valley Road |
Flat Branch is a 2.92miles long 2nd order tributary to the Fisher River in Surry County, North Carolina.
Flat Branch rises on the Red Hill Creek and Mitchell River divides about 2 miles southwest of Blevins Store, North Carolina. Flat Branch then flows generally east to join the Fisher River about 2 miles southeast of Blevins Store.[4]
Flat Branch drains of area, receives about 49.2 in/year of precipitation, has a wetness index of 340.91, and is about 63% forested.[2]