| Official Name: | Bagh |
| Native Name: | باغ |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Zanjan |
| Subdivision Type2: | County |
| Subdivision Name2: | Zanjan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Qareh Poshtelu |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Qareh Poshtelu-e Bala |
| Population As Of: | 2006 |
| Population Total: | 321 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.9778°N 48.3122°W |
Bagh (Persian: باغ, also Romanized as Bāgh; also known as Bag) is a village in Qareh Poshtelu-e Bala Rural District, Qareh Poshtelu District, Zanjan County, Zanjan Province, Iran. At the 2006 census, its population was 321, in 69 families.