| Type: | commune |
| County: | Bacău |
| Population Total: | auto |
| Gioseni | |
| Coordinates: | 46.4333°N 85°W |
Gioseni is a commune in Bacău County, Western Moldavia, Romania. It is composed of a single village, Gioseni. It was part of Tamași Commune until 2005, when it was split off.