| Official Name: | Haju |
| Native Name: | حاجو |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | West Azerbaijan |
| Subdivision Type2: | County |
| Subdivision Name2: | Maku |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Bazargan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Chaybasar-e Shomali |
| Population As Of: | 2006 |
| Population Total: | 256 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 39.5475°N 44.5253°W |
Haju (Persian: حاجو, also Romanized as Ḩājū and Ḩājjū) is a village in Chaybasar-e Shomali Rural District, Bazargan District, Maku County, West Azerbaijan Province, Iran. At the 2006 census, its population was 256, in 42 families.