| Province: | SK |
| Type: | Hwy |
| Route: | 373 |
| Photo Width: | 250 |
| Length Km: | 14.0 |
| Length Round: | 1 |
| Direction A: | South |
| Terminus A: | near Lucky Lake |
| Direction B: | North |
| Terminus B: | near Birsay |
| Rural Municipalities: | Canaan, Coteau |
| Previous Type: | Hwy |
| Previous Route: | 371 |
| Next Type: | Hwy |
| Next Route: | 374 |
Highway 373 is a provincial highway in the Canadian province of Saskatchewan. It runs from Highway 42 to Highway 45 / Highway 646 near Birsay. It is about long.