English abbreviations from ird to iris
- IRD (Infantile Refsum disease)
- IRD&S (International Research, Development, and Standardization)
- IrDA (Infrared Data Association)
- IRDC ((celestial object) Infrared Dark Cloud)
- IRDS (Information Resource Dictionary System)
- IRDSO (Integrated Rural Development Service Organisation (India))
- IRDSS (Infrared Defeating Smoke system)
- IRE (Irecê Airport)
- IREA (Intermountain Rural Electric Association)
- IREMBASS (Improved Remotely Monitored Battlefield Sensor System)
- IRF (Inpatient rehabilitation facility)
- IRFPA (Infra-Red Focal Plane Array)
- IRFS (Institute for Reporters' Freedom and Safety)
- IRFU (Irish Rugby Football Union)
- IRG (Lockhart River Airport)
- IRGB (International Relations Global Business)
- IRGCN (Iranian Revolutionary Guard Corps Navy)
- IRGH (Iain Rennie Grove House)
- IRI (Industrial Research Institute)
- IRIAF (Islamic Republic of Iran Air Force)
- IRIAM (Integrated Radar and Infra-red Analysis and Modeling)
- IRIB (Islamic Republic Of Iran Broadcasting)
- IRIG (Inter Range Instrumentation Group)
- IRINN (Islamic Republic of Iran News Network)
- IRINT (Infrared Intelligence)
- IRIS (I Recycle In Sherman)