| Type: | commune |
| County: | Dolj |
| Population Total: | auto |
| Secu | |
| Coordinates: | 44.4833°N 41°W |
Secu is a commune in Dolj County, Oltenia, Romania with a population of 1,400 people. It is composed of four villages: Comănicea, Secu, Smadovicioara de Secu and Șumandra.