| Bieg Piastów | |
| Status: | active |
| Genre: | sporting event |
| Date: | February–March |
| Frequency: | annual |
| Location: | Szklarska Poręba |
| Country: | Poland |
The Bieg Piastów (literally the Piast Race) is a cross-country skiing marathon in Poland. It has been held since 1976.[1] and is part of Worldloppet since 2008.[2]