| Official Name: | Heydarabad-e Marali |
| Native Name: | حيدرآباد مرالي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Lorestan |
| Subdivision Type2: | County |
| Subdivision Name2: | Delfan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Nurali |
| Population As Of: | 2006 |
| Population Total: | 155 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.1742°N 47.9164°W |
Heydarabad-e Marali (Persian: حيدرآباد مرالي, also Romanized as Ḩeydarābād-e Marālī) is a village in Nurali Rural District, in the Central District of Delfan County, Lorestan Province, Iran. At the 2006 census, its population was 155, in 34 families.