| Official Name: | Pachian |
| Native Name: | پاچيان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Qom |
| Subdivision Type2: | County |
| Subdivision Name2: | Qom |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Jafarabad |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Jafarabad |
| Population As Of: | 2006 |
| Population Total: | 351 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.8017°N 50.5792°W |
Pachian (Persian: پاچيان, also Romanized as Pāchīān and Pāchīyān; also known as Pājeyān) is a village in Jafarabad Rural District, Jafarabad District, Qom County, Qom Province, Iran. At the 2006 census, its population was 351, in 88 families.