| Official Name: | Nowmandan |
| Native Name: | نومندان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Talesh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Kargan Rud |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Lisar |
| Population As Of: | 2006 |
| Population Total: | 362 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.9478°N 48.8914°W |
Nowmandan (Persian: نومندان, also Romanized as Nowmandān; also known as Namandan) is a village in Lisar Rural District, Kargan Rud District, Talesh County, Gilan Province, Iran. According to the 2006 census, its population was 362, in 85 families.