| Type: | commune |
| County: | Ialomița |
| Balaciu | |
| Leader Name: | Cornel Mihu |
| Leader Party: | PNL |
| Leader Term: | 2020 - 2024 |
| Coordinates: | 44.6167°N 79°W |
| Elevation: | 45 |
| Area Total: | 124 |
| Population Total: | auto |
| Postal Code: | 927040 |
| Area Code: | +(40) 243 |
Balaciu is a commune located in Ialomița County, Muntenia, Romania. It is composed of four villages: Balaciu, Copuzu, Crăsanii de Jos, and Crăsanii de Sus. It also included the village of Sărățeni until 2005, when it was split off to form Sărățeni Commune.