| Official Name: | Zajača |
| Settlement Type: | Village (Selo) |
| Pushpin Map: | Serbia |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Serbia |
| Subdivision Type1: | District |
| Subdivision Name1: | Mačva District |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Loznica |
| Unit Pref: | Imperial |
| Population As Of: | 2002 |
| Population Total: | 693 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 44.45°N 33°W |
Zajača is a village in the municipality of Loznica, Serbia. According to the 2002 census, the village has a population of 693 people.[1]