Grebnice
Grebnice is a village mostly located in Domaljevac-Šamac, Federation of Bosnia and Herzegovina, Bosnia and Herzegovina. However about a third of it is located in Šamac, which belongs to the Republika Srpska.
Demographics
According to the 2013 census, its population was 1,358, with 455 living in the Šamac part and 903 in the Domaljevac-Šamac part.| Ethnicity | Number | Percentage |
| Croats | 1,276 | 94.0% |
| Serbs | 78 | 5.7% |
| Bosniaks | 1 | 0.1% |
| other/undeclared | 3 | 0.2% |
| Total | 1,358 | 100% |