| Official Name: | Darreh-ye Omid Ali |
| Native Name: | دره اميدعلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hamadan |
| Subdivision Type2: | County |
| Subdivision Name2: | Malayer |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Samen |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Avarzaman |
| Population As Of: | 2006 |
| Population Total: | 308 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.3217°N 48.4289°W |
Darreh-ye Omid Ali (Persian: دره اميدعلي, also Romanized as Darreh-ye Omīd ‘Alī and Darreh Omīd ‘Alī; also Darreh Omīn ‘Alī) is a village in Avarzaman Rural District, Samen District, Malayer County, Hamadan Province, Iran. At the 2006 census, its population was 308, encompassing 70 families.