| Official Name: | Garmab-e Pain |
| Native Name: | گرماب پائين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Semnan |
| Subdivision Type2: | County |
| Subdivision Name2: | Shahrud |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Beyarjomand |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kharturan |
| Population As Of: | 2006 |
| Population Total: | 119 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.3469°N 56.8944°W |
Garmab-e Pain (Persian: گرماب پائين, also Romanized as Garmāb-e Pā’īn and Garmāb Pā’īn; also known as Garmāb) is a village in Kharturan Rural District, Beyarjomand District, Shahrud County, Semnan Province, Iran. At the 2006 census, its population was 119, in 28 families.