SIRT
| Acronym | Definition |
|---|---|
| SIRT | Security Incident Response Team |
| SIRT | Simultaneous Iterative Reconstruction Technique |
| SIRT | Selective Internal Radiotherapy |
| SIRT | Staten Island Rapid Transit Railway Company |
| SIRT | Serious Incident Response Team |
| SIRT | Spam Incident Reporting & Termination (CastleCops) |
| SIRT | Signaling Information Receiver/Transmitter |
| SIRT | Screen Industries Research and Training Centre (Canada) |
| SIRT | Shot Indicating Resetting Trigger (firearms) |