Finnish national road 51
| Highway 51 | |
|---|---|
| Kantatie 51, Stamväg 51 | |
| Route information | |
| Maintained by the Finnish Transport Agency | |
| Length | 74 km (46 mi) |
| Major junctions | |
| From | Helsinki |
| To | Raseborg |
| Location | |
| Country | Finland |
| Major cities | Espoo |
| Highway system | |
The Finnish national road 51 (Finnish: Kantatie 51; Swedish: Stamväg 51) is the 2nd class main route between the major cities of Helsinki and Raseborg in southern Finland. It runs from Ruoholahti in Helsinki and passes through Espoo to Kirkkonummi as a motorway called Länsiväylä (Swedish: Västerleden), where it continues to Karis in Raseborg as a smaller road.