| Official Name: | Mirna |
| Native Name: | ميرنا |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Mazandaran |
| Subdivision Type2: | County |
| Subdivision Name2: | Nur |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Chamestan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Mianrud |
| Population As Of: | 2006 |
| Population Total: | 204 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.4303°N 52.2164°W |
Mirna (Persian: ميرنا, also Romanized as Mīrnā) is a village in Mianrud Rural District, Chamestan District, Nur County, Mazandaran Province, Iran. At the 2006 census, its population was 204, in 50 families.