| Acronym | Definition |
|---|
| SIRR➣Station Island Railroad |
| SIRR➣Society of Internet Rugby Referees (website) |
| SIRR➣Software Integration Readiness Review |
| SIRR➣Stepped-Impedance Ring Resonator |
| SIRR➣Software Improvement Recommendation Report |
| SIRR➣Software Installation Results Record |
| SIRR➣Special Initiative for Residential-Led Regeneration (UK) |