| Coordinates: | 50.7497°N 7.855°W |
| Image Plan: | Molzhain in AK.svg |
| State: | Rheinland-Pfalz |
| District: | Altenkirchen |
| Verbandsgemeinde: | Betzdorf-Gebhardshain |
| Elevation: | 370 |
| Area: | 2.91 |
| Postal Code: | 57520 |
| Area Code: | 02747 |
| Licence: | AK |
| Gemeindeschlüssel: | 07 1 32 071 |
| Mayor: | Stefan Glorius[1] |
| Leader Term: | 2019 - 24 |
Molzhain is a municipality in the district of Altenkirchen, in Rhineland-Palatinate, in western Germany.