| Official Name: | Darreh Arzani |
| Native Name: | دره ارزني |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Yazd |
| Subdivision Type2: | County |
| Subdivision Name2: | Mehriz |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Tang Chenar |
| Population As Of: | 2006 |
| Population Total: | 17 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 31.4433°N 54.2844°W |
Darreh Arzani (fa|دره ارزني, also Romanized as Darreh Arzanī, Darreh Arzānī, and Darreh-ye Arzenī; also known as Dar-e Arzānī, Darreh Arzan, and Derah Arzāni) is a village in Tang Chenar Rural District, in the Central District of Mehriz County, Yazd Province, Iran. At the 2006 census, its population was 17, in 6 families.