| Grassy Creek | |
| Name Other: | Tributary to Rocky River |
| Map Size: | 300 |
| Pushpin Map: | USA North Carolina#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Grassy Creek mouth |
| Pushpin Map Alt: | Map of Grassy Creek mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | North Carolina |
| Subdivision Type3: | County |
| Subdivision Name3: | Union |
| Length: | 7miles[1] |
| Discharge1 Location: | Rocky River |
| Discharge1 Avg: | 9.98cuft/s at mouth with Rocky River[2] |
| Source1: | Grassy Branch divide |
| Source1 Location: | pond about 1 mil northeast of Unionville, North Carolina |
| Source1 Coordinates: | 35.0981°N -80.4867°W[3] |
| Source1 Elevation: | 612feet[4] |
| Mouth: | Rocky River |
| Mouth Location: | about 3 miles northwest of New Salem, North Carolina |
| Mouth Coordinates: | 35.1639°N -80.4131°W |
| Mouth Elevation: | 358feet |
| Progression: | Rocky River → Pee Dee River → Winyah Bay → Atlantic Ocean |
| River System: | Pee Dee |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Haigler Baucom Road, Braswell Rushing Road, Love Mill Road, Zebulon Williams Road, Haigler Road, NC 218 |
Grassy Creek is a 7miles long 1st order tributary to the Rocky River in Union County, North Carolina.
Grassy Creek rises in a pond about 1 mile northeast of Unionville, North Carolina and then flows northeast to join the Rocky River about 3 miles northwest of New Salem.[4]
Grassy Creek drains of area, receives about 48.0 in/year of precipitation, has a wetness index of 425.52, and is about 36% forested.[2]