| Type: | commune |
| County: | Bacău |
| Căiuți | |
| Leader Name: | Gabriel Orândaru |
| Leader Party: | PSD |
| Leader Term: | 2020 - 2024 |
| Coordinates: | 46.1833°N 82°W |
| Elevation: | 168 |
| Area Total: | 46.85 |
| Population Total: | auto |
| Postal Code: | 607095 |
| Area Code: | +(40) 234 |
Căiuți is a commune in Bacău County, Western Moldavia, Romania. It is composed of nine villages: Blidari, Boiștea, Căiuți, Florești, Heltiu, Mărcești, Popeni, Pralea, and Vrânceni.
The commune is situated on the Moldavian Plateau, at an altitude of, on the banks of the Trotuș River and its right tributary, the Căiuți. It is located in the southern part of Bacău County, south of the county seat, Bacău, on the border with Vrancea County.