| Province: | QC |
| Type: | QC |
| Route: | 157 |
| Maint: | Transports Québec |
| Map: | Route 157-QC.png |
| Length Km: | 28.3 |
| Length Round: | 1 |
| Length Ref: | [1] |
| Direction A: | South |
| Direction B: | North |
| Terminus B: | in Shawinigan |
| Previous Type: | QC |
| Previous Route: | 155 |
| Next Type: | QC |
| Next Route: | 158 |
| Terminus A: | in Trois-Rivières (Cap-de-la-Madeleine) |
| Counties: | Trois-Rivières / Shawinigan |
| Cities: | Trois-Rivières, Shawinigan |
| Junction: | in Cap-de-la-Madeleine |
Route 157 is a four-lane north–south highway on the north shore of the Saint Lawrence River in Quebec, Canada. Its northern terminus is in Shawinigan at the junction of Route 153, and the southern terminus is at the junction of Route 138 in Cap-de-la-Madeleine, now part of Trois-Rivières.
| RCM or ET | Municipality | Km | Junction | Notes | |
|---|---|---|---|---|---|
| Trois-Rivières | 0.0 | 138 WEST: to Trois-Rivières 138 EAST: to Sainte-Marthe-du-Cap | |||
| 2.2 | (Exit 203) | 40 WEST: to Trois-Rivières 40 EAST: to Champlain | |||
| Shawinigan | 24.8 | 125e Rue | EAST: to Lac-à-la-Tortue | ||
| 28.3 | 153 SOUTH: to Saint-Boniface 153 NORTH: to Grand-Mère | ||||