SIRB
| Acronym | Definition |
|---|---|
| SIRB | Site Investigation and Restoration Branch (Delaware) |
| SIRB | Software Industry Research Board |
| SIRB | Seafarer's Identification and Record Book (International Registries, Inc.) |
| SIRB | Self Inflating Resuscitation Bag |
| SIRB | Science Interface Relay Box |
| SIRB | Social Science, Behavioral and Education Institutional Review Board (Michigan State University) |