| Saint-Didier-la-Forêt | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Saint-Didier-la-Forêt.svg |
| Arrondissement: | Vichy |
| Canton: | Bellerive-sur-Allier |
| Insee: | 03227 |
| Postal Code: | 03110 |
| Mayor: | Martine Deschamps[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 46.2261°N 3.3447°W |
| Elevation M: | 280 |
| Elevation Min M: | 246 |
| Elevation Max M: | 323 |
| Area Km2: | 33.59 |
Saint-Didier-la-Forêt (pronounced as /fr/) is a commune in the Allier department in Auvergne-Rhône-Alpes in central France.