| Saint-Didier-sur-Rochefort | |
| Commune Status: | Commune |
| Arrondissement: | Montbrison |
| Canton: | Boën-sur-Lignon |
| Insee: | 42217 |
| Postal Code: | 42111 |
| Mayor: | David Sarry[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Loire Forez |
| Coordinates: | 45.7942°N 3.8458°W |
| Elevation M: | 705 |
| Elevation Min M: | 457 |
| Elevation Max M: | 900 |
| Area Km2: | 22.75 |
Saint-Didier-sur-Rochefort (in French pronounced as /sɛ̃ didje syʁ ʁɔʃfɔʁ/, literally Saint-Didier on Rochefort) is a commune in the Loire department in central France.[2]