| Official Name: | Palain |
| Native Name: | پلايين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Tehran |
| Subdivision Type2: | County |
| Subdivision Name2: | Tehran |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Aftab |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Khalazir |
| Population As Of: | 2006 |
| Population Total: | 361 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.5853°N 51.3569°W |
Palain (Persian: پلايين, also Romanized as Palā’īn) is a village in Khalazir Rural District, Aftab District, Tehran County, Tehran Province, Iran. At the 2006 census, its population was 361, in 81 families.