| Image Coa: | Wappen Alt Zachun.svg |
| Coordinates: | 53.4833°N 31°W |
| Image Plan: | Alt_Zachun_in_LUP.svg |
| State: | Mecklenburg-Vorpommern |
| District: | Ludwigslust-Parchim |
| Amt: | Hagenow-Land |
| Elevation: | 37 |
| Area: | 8.43 |
| Postal Code: | 19230 |
| Area Code: | 038859 |
| Licence: | LUP, HGN, LBZ, LWL, PCH, STB |
| Gemeindeschlüssel: | 13 0 76 002 |
| Website: | www.amt-hagenow-land.de |
| Mayor: | Volker Klemz |
Alt Zachun is a municipality in the Ludwigslust-Parchim district, in Mecklenburg-Vorpommern, Germany.