| Type: | commune |
| County: | Dâmbovița |
| Population Total: | auto |
| Runcu | |
| Coordinates: | 45.1833°N 48°W |
Runcu is a commune in Dâmbovița County, Muntenia, Romania with a population of 4,397 people. It is composed of six villages: Bădeni, Brebu, Ferestre, Piatra, Runcu and Siliștea.