| Type: | commune |
| Măneciu | |
| County: | Prahova |
| Population Total: | auto |
| Leader Name: | Florin-Auraș Dragomir[1] |
| Term: | 2020 - 2024 |
| Leader Party: | PNL |
| Coordinates: | 45.3167°N 84°W |
| Area Total: | 236.43 |
| Postal Code: | 107355 |
Măneciu is a commune in Prahova County, Muntenia, Romania. It is composed of nine villages: Cheia, Chiciureni, Costeni, Făcăieni, Gheaba, Măneciu-Pământeni, Măneciu-Ungureni (the commune centre), Mânăstirea Suzana, and Plăiețu.
Cheia village is a mountain resort, surrounded by the Ciucaș Mountains. Cheia Monastery is located to the southeast of the village.