| Official Name: | Chomachar |
| Native Name: | چماچار |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Masal |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Shanderman |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Sheykh Neshin |
| Population As Of: | 2006 |
| Population Total: | 455 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.4422°N 49.1739°W |
Chomachar (Persian: چماچار, also Romanized as Chomāchār) is a village in Sheykh Neshin Rural District, Shanderman District, Masal County, Gilan Province, Iran. At the 2006 census, its population was 455, in 105 families.