| Province: | QC |
| Type: | QC |
| Route: | 231 |
| Maint: | Transports Québec |
| Map: | Route 231-QC.png |
| Length Km: | 22.6 |
| Length Round: | 1 |
| Length Ref: | [1] |
| Direction B: | North |
| Direction A: | South |
| Terminus B: | in Saint-Hyacinthe |
| Terminus A: | in Rougemont |
| Previous Type: | QC |
| Previous Route: | 230 |
| Next Type: | QC |
| Next Route: | 232 |
| Cities: | Saint-Hyacinthe |
| Junction: | in Saint-Damase |
Route 231 is a provincial highway located in the Montérégie region of Quebec. It runs from the junction of Route 112 between Rougemont and Saint-Césaire northeastward towards Saint-Hyacinthe until the junction of Route 116.