| Roundtop Mountain | |
| Location: | Wittenberg, New York, U.S. |
| Coordinates: | 42.0461°N -74.2081°W |
| Coordinates Ref: | [1] |
| Topo: | USGS Bearsville |
| Map: | New York#USA |
Roundtop Mountain is a mountain located in the Catskill Mountains of New York north-northwest of Wittenberg. Beetree Hill is located east-northeast, Johns Mountain is located east-northeast, and Mount Tobias is located north-northwest of Roundtop Mountain.