| Official Name: | Tomajan |
| Native Name: | تماجان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Amlash |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Rankuh |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kojid |
| Population As Of: | 2006 |
| Population Total: | 71 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.9044°N 50.0956°W |
Tomajan (Persian: تماجان, also Romanized as Tomājān; also known as Tūmājān) is a village in Kojid Rural District, Rankuh District, Amlash County, Gilan Province, Iran. At the 2006 census, its population was 71, in 33 families.