| Official Name: | Sayan |
| Native Name: | سايان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hamadan |
| Subdivision Type2: | County |
| Subdivision Name2: | Razan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Qorveh-e Darjazin |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Darjazin-e Sofla |
| Population As Of: | 2006 |
| Population Total: | 966 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.2661°N 49.0731°W |
Sayan (Persian: سايان, also Romanized as Sāyān) is a village in Darjazin-e Sofla Rural District, Qorveh-e Darjazin District, Razan County, Hamadan Province, Iran. At the 2006 census, its population was 966, in 222 families.