| Acronym | Definition |
|---|
| IRN➣Iran (ISO Country code) |
| IRN➣International Resource News |
| IRN➣International Rivers Network |
| IRN➣Intermediate Routing Node |
| IRN➣Internet Resources Newsletter |
| IRN➣Independent Radio News (UK) |
| IRN➣Intermediate Routing Node (Cisco) |
| IRN➣Intelligent Retail Network (Cisco) |
| IRN➣Interface Revision Notice |
| IRN➣Investor Relations Network |
| IRN➣Inspection Release Note |
| IRN➣Internationally Recruited Nurse (migration and labor market studies) |
| IRN➣Iron Roughneck (drilling) |
| IRN➣Index Reference Number |
| IRN➣Intelligent Remote Nodes (Integrated Network Corp) |
| IRN➣Ironton Railroad Company |
| IRN➣Instructor Radar Navigator |
| IRN➣Information Resource Navigator |
| IRN➣Intel Research Network |