| Province: | QC |
| Type: | QC |
| Route: | 285 |
| Map: | Route 285-QC.png |
| Length Km: | 48 |
| Length Round: | 1 |
| Length Ref: | [1] |
| Direction B: | North |
| Direction A: | South |
| Terminus B: | in L'Islet |
| Terminus A: | in Saint-Adalbert |
| Previous Type: | QC |
| Previous Route: | 283 |
| Next Type: | QC |
| Next Route: | 287 |
| Cities: | L'Islet |
Route 285 is a 48 km two-lane north/south highway on the south shore of the Saint Lawrence River in the Chaudière-Appalaches region of Quebec, Canada. Its northern terminus is in L'Islet at the junction of Route 132 and the southern terminus is close to Saint-Adalbert at the junction of Route 204.