| Geisig | |
| Image Coa: | DEU Geisig COA.svg |
| Coordinates: | 50.2564°N 7.7911°W |
| Image Plan: | Geisig in EMS.svg |
| State: | Rheinland-Pfalz |
| District: | Rhein-Lahn-Kreis |
| Verbandsgemeinde: | Bad Ems-Nassau |
| Elevation: | 250 |
| Area: | 3.91 |
| Postal Code: | 56357 |
| Area Code: | 06776 |
| Licence: | EMS, DIZ, GOH |
| Gemeindeschlüssel: | 07 1 41 046 |
| Mayor: | Frank Alberti[1] |
| Leader Term: | 2019 - 24 |
Geisig is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the association community of Bad Ems-Nassau.