| ASIR | Adaptive Statistical Interactive Reconstruction 
| Others |
| ASIR | Adaptive Statistical Iterative Reconstruction
| Others |
| ASIR | Aeronautical Shipboard Installation Representative
| Others |
| ASIR | Age Specific Incidence Rate
| Others |
| ASIR | Age Standardised Incidence Rate
| Others |
| ASIR | Age Standardized Incidence Rate
| Others |
| ASIR | Air Speed Indicator Reading
| Others |
| ASIR | Amsterdam School of International Relations
| Others |
| ASIR | Annals of Surgical Innovation and Research
| Others |
| ASIR | Anti Structure Inert Round
| Others |
| ASIR | Arizona School Immunization Record
| Others |
| ASIR | Automated Sewing Inspection Robot
| Others |
| ASIR | Automatic Signature Image Recognition
| Others |