| Type: | commune |
| County: | Călărași |
| Population Total: | auto |
| Coordinates: | 44.2167°N 80°W |
| Official Name: | Mânăstirea |
| Area Total Km2: | 123.54 |
Mânăstirea is a commune in Călărași County, Muntenia, Romania. It is composed of three villages: Coconi, Mânăstirea, and Sultana.
As of 2011, the population of Mânăstirea was 5,612.