| Castelu | |
|---|---|
| Commune | |
| Location of Castelu | |
| Coordinates: 44°15′0″N 28°20′0″E / 44.25000°N 28.33333°ECoordinates: 44°15′0″N 28°20′0″E / 44.25000°N 28.33333°E | |
| Country |  Romania | 
| County | Constanța County | 
| Status | Commune | 
| Component villages | Castelu, Nisipari | 
| Government | |
| • Mayor | Nicolae Anghel (People's Movement Party) | 
| Area | |
| • Total | 52.80 km2 (20.39 sq mi) | 
| Population (2011) | |
| • Total |  4,480 | 
| Time zone | EET (UTC+2) | 
| • Summer (DST) | EEST (UTC+3) | 
| Website | http://www.primaria-castelu.ro | 
Castelu is a commune in Constanța County, Romania.
The commune includes two villages:
At the 2011 census, Castelu had 3,453 Romanians (77.08%), 340 Roma (7.59%), 509 Turks (11.36%), 165 Tatars (3.68%), 6 Aromanians (0.13%), 7 others (0.16%).
Scythian bowl, 5th century BC, found at Castelu. In display at the Museum of National History in Constanța