| Acronym | Definition |
|---|
| SIRO➣Senior Information Risk Owner (UK) |
| SIRO➣Scientific and Industrial Research Organization (India) |
| SIRO➣Service in Random Order (queuing theory) |
| SIRO➣Software Inspection and Review Organization (Sunnyvale, CA) |
| SIRO➣Simultaneous Intersecting Runway Operation (aviation; Transport Canada) |