| Type: | Stadtteil |
| Town: | Jerichow |
| Image Coa: | DE-ST 15-0-86-080 Demsin COA.png |
| Coordinates: | 52.4328°N 12.2647°W |
| State: | Sachsen-Anhalt |
| District: | Jerichower Land |
| Elevation: | 30 |
| Area: | 22.35 |
| Population: | 382 |
| Stand: | 2006-12-31 |
| Postal Code: | 39307 |
| Area Code: | 039348 |
| Licence: | JL |
Demsin is a village and a former municipality in the Jerichower Land district, in Saxony-Anhalt, Germany.
Since 1 January 2010, it is part of the town Jerichow.[1]