| Province: | NB |
| Type: | NB |
| Route: | 315 |
| Maint: | New Brunswick Department of Transportation |
| Length Km: | 20 |
| Length Ref: | [1] [2] |
| Length Round: | 1 |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | in Bathurst |
| Junction: | in Bathurst in Sainte-Anne & Nigadoo in LaPlante |
| Counties: | Gloucester |
| Terminus B: | in Petit-Rocher |
| Previous Type: | NB |
| Previous Route: | 313 |
| Next Type: | NB |
| Next Route: | 320 |
Route 315 is a 20km (10miles) local highway in northwestern New Brunswick, Canada. The road runs from New Brunswick Route 180 in Bathurst to its northern terminus at New Brunswick Route 134 in Petit-Rocher, its route running mostly parallel to the west with New Brunswick Route 11.