| Type: | commune |
| County: | Bacău |
| Population Total: | auto |
| Helegiu | |
| Coordinates: | 46.35°N 71°W |
Helegiu is a commune in Bacău County, Western Moldavia, Romania. It is composed of four villages: Brătila, Deleni, Drăgugești and Helegiu. The commune was founded by merging the two neighbouring communes of Helegiu and Brătila as a result of the last administrative-territorial reorganization in 1968.