| ISIR | Industrial Speed Inspection Run 
| Others |
| ISIR | Initial Sample Inspection Report
| Others |
| ISIR | Institute for Screen Industries Research
| Others |
| ISIR | Institute for Systematic Investing Research
| Others |
| ISIR | Institute of Scientific and Industrial Research
| Others |
| ISIR | Institute Of Standards Industrial Research
| Others |
| ISIR | Institutional Student Information Record
| Others |
| ISIR | Institutional Student Information Report
| Others |
| ISIR | International Society for Immunology of Reproduction
| Others |
| ISIR | International Society for Intelligence Research
| Others |
| ISIR | International Society for Inventory Research
| Others |
| ISIR | International Society for Invetory Research
| Others |
| ISIR | Itial Sample Inspection Report
| Others |