| Flatrock Mountain | |
| Location: | SW of Old Forge, New York, U.S. |
| Coordinates: | 43.6681°N -75.0586°W |
| Coordinates Ref: | [1] |
| Topo: | USGS Thendara |
| Map: | New York#USA |
Flatrock Mountain is a summit located in Central New York Region of New York located in the Town of Webb in Herkimer County, southwest of Old Forge. Bare Mountain is located northwest of Flatrock Mountain.