| Onceşti | |
|---|---|
| — Commune — | |
| Country | Romania |
| County | Bacău County |
| Population (2002)[1] | 1,702 |
| Time zone | EET (UTC+2) |
| • Summer (DST) | EEST (UTC+3) |
Onceşti is a commune in Bacău County, Romania. It is composed of seven villages: Bărboasa, Dealu Perjului, Onceşti, Onceştii Vechi, Satu Nou, Tarniţa and Taula.