| Ciachcin | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Płock |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Bielsk |
| Coordinates: | 52.6217°N 19.8053°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 170 |
Ciachcin is a village in the administrative district of Gmina Bielsk, within Płock County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 6km (04miles) south of Bielsk, 110NaN0 north-east of Płock, and 930NaN0 north-west of Warsaw.