| Country: | CRI |
| Type: | Secondary |
| Route: | 143 |
| Map Custom: | yes --> |
| Direction A: | NORTH/SOUTH/EAST/WEST? |
| Direction B: | NORTH/SOUTH/EAST/WEST? |
| Terminus B: | --> |
| Provinces: | Alajuela, Guanacaste |
| Length Km: | 20.145 |
| Length Round: | 2 |
| Previous Type: | RNS |
| Previous Route: | 142 |
| Next Type: | RNS |
| Next Route: | 144 |
National Secondary Route 143, or just Route 143 (es|Ruta Nacional Secundaria 143, or Spanish; Castilian: Ruta 143) is a National Road Route of Costa Rica, located in the Alajuela, Guanacaste provinces.[1]
In Alajuela province the route covers Guatuso canton (San Rafael, Cote districts).
In Guanacaste province the route covers Tilarán canton (Arenal district).