| Official Name: | Dizan |
| Native Name: | ديزان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Qazvin |
| Subdivision Type2: | County |
| Subdivision Name2: | Buin Zahra |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Dashtabi |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Dashtabi-ye Gharbi |
| Population As Of: | 2006 |
| Population Total: | 393 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.0169°N 49.8825°W |
Dizan (Persian: ديزان, also Romanized as Dīzān; also known as Tezān) is a village in Dashtabi-ye Gharbi Rural District, Dashtabi District, Buin Zahra County, Qazvin Province, Iran. At the 2006 census, its population was 393, in 102 families.The family of Darvish Hosseini is one of the first and oldest residents of this village and the majority of the villagers's income is from raisin production.