| Official Name: | Heydarabad |
| Native Name: | حيدراباد |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ilam |
| Subdivision Type2: | County |
| Subdivision Name2: | Ilam |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Sivan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Mishkhas |
| Population As Of: | 2006 |
| Population Total: | 691 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 33.5294°N 46.5733°W |
Heydarabad (Persian: حيدراباد, also Romanized as Ḩeydarābād; also known as Ḩeydarābād-e Mīsh Khāş) is a village in Mishkhas Rural District, in the Sivan District of Ilam County, Ilam Province, Iran. At the 2006 census, its population was 691, in 130 families. The village is populated by Kurds.[1]