| Abbreviation | Definition |
|---|---|
| ICHR | Irish Centre for Human Rights |
| ICHR | Irish Council for Human Rights |
| ICLO | Irish Circle of the Lacanian Orientation |
| ICLT | Irish Civil Liberties Trust |
| ICN | Ireland Chinese Network |
| ICRO | Irish Cave Rescue Organisation |
| ICSG | Irish Centre for |
| IDCV | Irish Dance Center Vienna |
| IDH | Irish Design House |
| IDH | Irish Driver Harris |
| IDMF | Irish Deer Managment Forum |
| IDMS | Irish Downhill Mountainbike Series |
| IDNA | Irish Dental Nurses Association |
| IEAC | Irish Education Agent Course |
| IEAC | Irish Education Agents Course |
| IENA | Irish Emergency Nurses Association |
| IEOS | Irish Earth Observation Symposium |
| IFA | Irish F***ers Association |
| IFB | Irish Film Board |
| IFBA | Irish Farm Buildings Association |