| Official Name: | Hrastovac |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | top |
| Coordinates: | 45.5514°N 16.9889°W |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Name1: | Bjelovar-Bilogora County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Garešnica |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 8.3 |
| Elevation M: | 113 |
| Population As Of: | 2021 |
| Population Total: | 370 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 43280 Garešnica |
| Area Code: | 043 |
| Registration Plate: | BJ |
Hrastovac is a settlement in the municipality Garešnica, Bjelovar-Bilogora County in Croatia. It is connected by the D26 highway.
According to the 2021 census, its population was 370.
According to the 2001 census, there were 539 inhabitants,[2] in 167 of family households.[3]