| Official Name: | Sadian-e Maraq |
| Native Name: | ساديان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Isfahan |
| Subdivision Type2: | County |
| Subdivision Name2: | Kashan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Barzok |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Babaafzal |
| Population As Of: | 2006 |
| Population Total: | 450 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 33.91°N 51.1672°W |
Sadian-e Maraq (Persian: ساديان مرق, also Romanized as Sādīān-e Maraq; also known as Bīdīān, Sādīān, and Sādīyān) is a village in Babaafzal Rural District, Barzok District, Kashan County, Isfahan Province, Iran. At the 2006 census, its population was 450, in 123 families.