| Official Name: | Mahvizan |
| Native Name: | مهويزان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Sowme'eh Sara |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Mirza Kuchek Janghli |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Gurab Zarmikh |
| Population As Of: | 2006 |
| Population Total: | 1,132 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.2928°N 49.1931°W |
Mahvizan (fa|مهويزان, also Romanized as Mahvīzān; also known as Mamuzān and Mavizen) is a village in Gurab Zarmikh Rural District, Mirza Kuchek Janghli District, Sowme'eh Sara County, Gilan Province, Iran. At the 2006 census, its population was 1,132, in 317 families.