| Lacys 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 Lacys Creek mouth |
| Pushpin Map Alt: | Map of Lacys Creek mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | North Carolina |
| Subdivision Type3: | County |
| Subdivision Name3: | Chatham |
| Length: | 4.3miles[1] |
| Discharge1 Location: | Rocky River |
| Discharge1 Avg: | 5.79cuft/s at mouth with Rocky River[2] |
| Source1: | Brush Creek divide |
| Source1 Location: | about 1.5 miles northwest of Siler City, North Carolina |
| Source1 Coordinates: | 35.7533°N -79.4989°W[3] |
| Source1 Elevation: | 642feet[4] |
| Mouth: | Rocky River |
| Mouth Location: | about 2 miles north of Siler City, North Carolina |
| Mouth Coordinates: | 35.7744°N -79.4608°W |
| Mouth Elevation: | 525feet |
| Progression: | Rocky River → Deep River → Cape Fear River → Atlantic Ocean |
| River System: | Deep River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Old US 421, US 421, Piney Grove Church Road, Sycamore Lake Road 1382 |
Lacys Creek is a 4.3miles long 2nd order tributary to the Rocky River in Chatham County, North Carolina. This is the only stream of this name in the United States.
Lacys Creek rises about 1.5 miles northwest of Siler City, North Carolina in Chatham County. Lacys Creek then flows northeast to join the Rocky River about 2 miles north of Siler City.[4]
Lacys Creek drains of area, receives about 48.0 in/year of precipitation, has a wetness index of 443.07 and is about 58% forested.[2]