| Official Name: | Castelo Viegas |
| Region: | Centro |
| Cim: | Região de Coimbra |
| District: | Coimbra |
| Area Total: | 7.11 |
| Population Total: | 1695 |
| Population As Of: | 2011 |
| Patron: | Saint Stephen |
| Dissolved: | 28 January 2013 |
| Type: | parish |
| Municipality: | Coimbra |
Castelo Viegas is a former civil parish in the municipality of Coimbra, Portugal. The population in 2011 was 1,695, in an area of 7.11 km2.[1] On 28 January 2013 it merged with Santa Clara to form Santa Clara e Castelo Viegas.[2]
The first mention is in 1122 with the name Castel Venegas.