| Type: | commune |
| County: | Prahova |
| Official Name: | Drajna |
| Population Total: | auto |
| Coordinates: | 45.2167°N 29°W |
Drajna is a commune in Prahova County, Muntenia, Romania. It is composed of eleven villages: Cătunu, Ciocrac, Drajna de Jos, Drajna de Sus (the commune centre), Făget, Ogretin, Piatra, Pițigoi, Plai, Podurile, and Poiana Mierlei.
The river Drajna flows through the commune; it discharges into the Teleajen in Piatra.