| Official Name: | Brnjavac |
| Native Name: | [1] |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Map Caption: | Location of Brnjavac in Croatia |
| Pushpin Label Position: | bottom |
| Coordinates: | 45.3167°N 70°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Croatia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Central and Eastern (Pannonian) Croatia |
| Subdivision Type2: | County |
| Subdivision Name2: | Sisak-Moslavina County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Gvozd |
| Unit Pref: | Metric |
| Area Footnotes: | [2] |
| Area Total Km2: | 6.0 |
| Elevation M: | 181 |
| Population As Of: | 2021 |
| Population Total: | 49 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 44410 |
| Area Code: | (+385) 44 |
Brnjavac (Serbian: Брњавац) is a village in central Croatia, in the municipality of Gvozd, Sisak-Moslavina County. It is connected by the D6 highway.
According to the 2011 census, the village of Brnjavac has 161 inhabitants. This represents 43.06% of its pre-war population according to the 1991 census.