| Acronym | Definition |
|---|
| SPIR➣Society for Pediatric Interventional Radiology |
| SPIR➣System Problem/Improvement Report |
| SPIR➣Sindicato de Profesionales de La Información de La Rioja (Spanish: Union of Information Professionals Rioja; Logrono, Spain) |
| SPIR➣Spectroscopie Dans le Proche Infrarouge (French: Near Infrared Reflectance Spectroscopy) |
| SPIR➣Symmetric Private Information Retrieval |
| SPIR➣Samaritan's Purse International Relief (UK) |
| SPIR➣Spare Parts List and Interchangeability Record |
| SPIR➣Serviciul Politiei de Interventie Rapida (Romania) |
| SPIR➣Shipboard Passive Infrared Sensor |
| SPIR➣Spectral Presaturation by Inversion Recovery (MRI sequence) |
| SPIR➣Short Perimeter Intrusion Radar |
| SPIR➣Strategic Process Improvement and Reengineering (Office) |