| Country: | CRI |
| Type: | Tertiary |
| Route: | 737 |
| Map Custom: | yes --> |
| Direction A: | NORTH/SOUTH/EAST/WEST? |
| Direction B: | NORTH/SOUTH/EAST/WEST? |
| Terminus B: | --> |
| Provinces: | Alajuela |
| Length Km: | 13.525 |
| Length Round: | 2 |
| Previous Type: | RNT |
| Previous Route: | 735 |
| Next Type: | RNT |
| Next Route: | 738 |
National Tertiary Route 737, or just Route 737 (Spanish; Castilian: Ruta Nacional Terciaria 737, or Spanish; Castilian: Ruta 737) is a National Road Route of Costa Rica, located in the Alajuela province.[1]
In Alajuela province the route covers Upala canton (Aguas Claras district).