| Acronym | Definition |
|---|
| GIRS➣Greater Iowa Reef Society |
| GIRS➣Gas Industry Registration Scheme (UK) |
| GIRS➣Genevan Institute for Reformed Studies (Pinellas Park, FL) |
| GIRS➣Grid Index Reference System |
| GIRS➣Graduate Institute of Religious Studies (National ChengchiUniversity; Taiwan) |
| GIRS➣Global Interconnect Reconciliation System |
| GIRS➣Global Incident Reporting System |