| Acronym | Definition |
|---|
| GER | German/Germany |
| GER | Grand Exalted Ruler (club title) |
| GER | Gastroesophageal Reflux |
| GER | Gold Experience Requiem (gaming) |
| GER | Geriatrics |
| GER | Great Ethiopian Run (est. 2001) |
| GER | Gas Exchange Ratio |
| GER | General Education Requirement |
| GER | Great Eastern Railway (UK) |
| GER | Gemeinsame Ermittlungsgruppe Rauschgift (German: Joint Investigation Drug Group) |
| GER | Gross Enrollment Ratio (education) |
| GER | Gemeinsamer Europäischer Referenzrahmen für Sprachen (German: Common European Framework of Reference for Languages) |
| GER | Global Emergency Response |
| GER | Gain Electrons Reduction |
| GER | Greening Ethnic Restaurants |
| GER | General Estamos Resacosos |
| GER | Gulfstream Engineering Report |