| Saint-Bonnet-Tronçais | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Saint-Bonnet-Tronçais.svg |
| Arrondissement: | Montluçon |
| Canton: | Bourbon-l'Archambault |
| Insee: | 03221 |
| Postal Code: | 03360 |
| Mayor: | Didier Regrain[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC du Pays de Tronçais |
| Coordinates: | 46.6608°N 2.6939°W |
| Elevation M: | 230 |
| Elevation Min M: | 198 |
| Elevation Max M: | 271 |
| Area Km2: | 27.98 |
Saint-Bonnet-Tronçais (in French pronounced as /sɛ̃ bɔnɛ tʁɔ̃sɛ/) is a commune in the Allier department in Auvergne-Rhône-Alpes in central France, within the borders of the national Forest of Tronçais.