| Rochefort-en-Yvelines | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Rochefort-en-Yvelines (Yvelines).svg |
| Arrondissement: | Rambouillet |
| Canton: | Rambouillet |
| Insee: | 78522 |
| Postal Code: | 78730 |
| Mayor: | Sylvain Lambert[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Rambouillet Territoires |
| Coordinates: | 48.5867°N 1.9886°W |
| Elevation Min M: | 85 |
| Elevation Max M: | 163 |
| Area Km2: | 12.59 |
Rochefort-en-Yvelines (in French pronounced as /ʁɔʃfɔʁ ɑ̃.n‿ivlin/) is a commune in the Yvelines department, part of the Rambouillet in the Île-de-France in France.[2]