| Official Name: | Dizaj |
| Native Name: | ديزج |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | East Azerbaijan |
| Subdivision Type2: | County |
| Subdivision Name2: | Osku |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Bavil |
| Population As Of: | 2006 |
| Population Total: | 2,990 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.9272°N 46.0644°W |
Dizaj (Persian: ديزج امیرمدار, also Romanized as Dīzaji; also known as Dīzaj Amīr, Dīzaj-e Amīr Madār, and Dizeh) is a village in Bavil Rural District, in the Central District of Osku County, East Azerbaijan Province, Iran. At the 2006 census, its population was 2,990, in 818 families.