| Maasholm Masholm | |
| Image Coa: | DEU Maasholm COA.svg |
| Coordinates: | 54.6844°N 9.9908°W |
| Image Plan: | Maasholm in SL.PNG |
| State: | Schleswig-Holstein |
| District: | Schleswig-Flensburg |
| Amt: | Geltinger Bucht |
| Elevation: | 0 |
| Area: | 8.4 |
| Postal Code: | 24404 |
| Area Code: | 04642 |
| Licence: | SL |
| Gemeindeschlüssel: | 01 0 59 142 |
| Mayor: | Kay-Uwe Andresen |
Maasholm (da|Masholm) is a municipality in the district of Schleswig-Flensburg, in Schleswig-Holstein, Germany.