GIRO
| Acronym | Definition |
|---|---|
| GIRO | Government Internal Revenue Order (India) |
| GIRO | Garbage in Rubbish Out |
| GIRO | General Instructions for Routing and Reporting Officers (US Navy) |
| GIRO | Groupe en Informatique et Recherche Opérationnelle (public transit and postal software company) |
| GIRO | General Interbank Recurring Order |
| GIRO | General Insurance Research Organising Committee (UK) |