| Official Name: | Quzlu |
| Native Name: | قوزلو |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Qazvin |
| Subdivision Type2: | County |
| Subdivision Name2: | Avaj |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kharaqan-e Gharbi |
| Population As Of: | 2006 |
| Population Total: | 394 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Coordinates: | 35.6328°N 49.1281°W |
Quzlu (Persian: قوزلو, also Romanized as Qūzlū) is a village in Kharaqan-e Gharbi Rural District, Central District, Avaj County, Qazvin Province, Iran. At the 2006 census, its population was 394, in 98 families.