| Acronym | Definition |
|---|
| SIRC | Secure Irc |
| SIRC | Security Intelligence Review Committee (Canada) |
| SIRC | Sport Information Resource Centre |
| SIRC | Social Issues Research Centre (Oxford, UK) |
| SIRC | Styrene Information and Research Center (Arlington, VA) |
| SIRC | Seafarers International Research Centre |
| SIRC | School Improvement Resource Center |
| SIRC | Snow and Ice Research Center (National Research Institute for Earth Science and Disaster Prevention; Japan) |
| SIRC | Sydney ITeC Repair Centre (Australia) |
| SIRC | Solicitors Introduction and Referral Code (UK) |
| SIRC | Safety Input Review Committee |
| SIRC | Shuttle Imaging Radar-C |
| SIRC | Staten Island Railroad Corporation |
| SIRC | Secure Internet Relay Chat |
| SIRC | Sensory Integration Resource Center |