| Official Name: | Trebež |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Map Caption: | Location in Croatia |
| Pushpin Label Position: | bottom |
| Coordinates: | 45.3811°N 16.7781°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Continental Croatia |
| Subdivision Type2: | County |
| Subdivision Name2: | Sisak-Moslavina |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Jasenovac |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 13.0 |
| Elevation M: | 98 |
| Population As Of: | 2021 |
| Population Total: | 39 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 44325 Krapje |
| Area Code: | (+385) 44 |
Trebež is a village in central Croatia, in the municipality of Jasenovac, Sisak-Moslavina County.
According to the 2011 census, the village of Trebež has 53 inhabitants. This represents 63.10% of its pre-war population.
According to the 1991 census, 79 residents were ethnic Croats (94.05%), 3 were ethic Serbs (3.57%), and 2 were Yugoslavs (2.38%).