| Abbreviation | Definition |
|---|---|
| GMDN | Global Medical Device Nomenclature |
| GME | Graduate Medical Education |
| G-MED(LNE) | Groupfor Medical Device Assessment (Laboratoire National de Metrologie et d'Essias) |
| GMID | Global Market Information Database |
| GMO | Genetically Modified Organism |
| GMO | Grants Management Officer |
| GOCO | Government-Owned Contractor-Operated |
| GOCRG | Gastrointestinal and Other Cancer Research Group |
| GOVCC | GOVernment Travel Charge Card |
| GOVTRIP | GOVernment TRavel website |
| GPEA | Government Paperwork Elimination Act |
| GPhA | Generic Pharmaceutical Association |
| GPO | Group Purchasing Organization |
| GPP | good programming practices |
| GPRA | Government Performance Results Act of 1993 |
| GPRD | General Practice Research Database |
| GRAS | Generally Recognized As Safe |
| GRAS/E | Generally Recognized As Safe and Effective |
| GRASE | generally recognized as safe and effective |
| GRC | Gerontology Research Center |