| Acronym | Definition |
|---|
| RIAT | Royal International Air Tatoo |
| RIAT | Rapid Impact Assessment Team |
| RIAT | Russian International Academy for Tourism |
| RIAT | Runway Incursion Action Team |
| RIAT | Reasons for Not Intensifying Antihypertensive Treatment |
| RIAT | Rede de Informação E Assistência Técnica |
| RIAT | Rwanda Interagency Assessment Team |
| RIAT | Record ID Attribute Table |
| RIAT | Roundtable on Information Access and Technology |
| RIAT | Risk, Intelligence and Analysis Team (UK) |
| RIAT | Research Institute for Advanced Technology |
| RIAT | Reuse Issues Action Team |
| RIAT | Reserve Industrial Augmentation Team |
| RIAT | Raising Individual Achievement Team |
| RIAT | Radio-Immune Antiglobulin Test |
| RIAT | Runway Incursion and Surface Error Prevention Team |
| RIAT | Radio Immuno Assay Technology |