| Province: | QC |
| Type: | QC |
| Route: | 255 |
| Map: | Route 255-QC.png |
| Length Km: | 129 |
| Length Round: | 1 |
| Length Ref: | [1] |
| Direction A: | North |
| Direction B: | South |
| Terminus A: | near Baie-du-Febvre |
| Terminus B: | near Bury |
| Previous Type: | QC |
| Previous Route: | 253 |
| Next Type: | QC |
| Next Route: | 257 |
| Cities: | Val-des-Sources |
| Junction: |
|
Route 255 is a north–south highway on the south shore of the St. Lawrence River. Its northern terminus is in Baie-du-Febvre at the junction of Route 132 and its southern terminus is in Bury at the junction of Quebec Route 214.