| Image Coa: | Wappen Demen.svg |
| Coordinates: | 53.6333°N 57°W |
| Image Plan: | Demen in LUP.svg |
| State: | Mecklenburg-Vorpommern |
| District: | Ludwigslust-Parchim |
| Amt: | Crivitz |
| Elevation: | 45 |
| Area: | 46.79 |
| Postal Code: | 19089 |
| Area Code: | 038488 |
| Licence: | PCH |
| Gemeindeschlüssel: | 13 0 76 029 |
| Divisions: | 4 |
| Website: | www.gemeinde-demen.de |
| Mayor: | Thomas Schwarz |
Demen is a municipality in the Ludwigslust-Parchim district, in Mecklenburg-Vorpommern, Germany.