| Seneca Rocks | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | West Virginia#USA |
| Pushpin Map Caption: | Location within the state of West Virginia |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | West Virginia |
| Subdivision Type2: | County |
| Subdivision Name2: | Pendleton |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1568 |
| Coordinates: | 38.8347°N -79.3761°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 26884[1] |
| Area Code: | 304 and 681 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1552243 |
Seneca Rocks is an unincorporated community located in Pendleton County, West Virginia, United States. The community of Seneca Rocks — formerly known as Mouth of Seneca — lies at the junction of US 33, WV 28 and WV 55 near the confluence of Seneca Creek and the North Fork South Branch Potomac River. The community also lies near Seneca Rocks, the crag from which it takes its name. Both lie within the Spruce Knob–Seneca Rocks National Recreation Area of the Monongahela National Forest.
Located at Seneca Rocks is the Sites Homestead (c. 1839), now part of the Seneca Rocks Visitor Center and listed on the National Register of Historic Places in 2004. Located nearby is the Boggs Mill (c. 1830), listed in 2004.