| Acronym | Definition |
|---|
| IRI➣Information Reuse and Integration |
| IRI➣Islamic Republic of Iran |
| IRI➣International Republican Institute (formerly National Republican Institute for International Affairs, NRIAA, Washington DC) |
| IRI➣Integrated Resources, Inc. (various locations) |
| IRI➣International Roughness Index (describes road roughness) |
| IRI➣International Research Institute for Climate and Society (Columbia University, New York) |
| IRI➣Interpersonal Reactivity Index (psychology) |
| IRI➣Immunoreactive Insulin |
| IRI➣Interactive Radio Instruction |
| IRI➣Industrial Research Institute |
| IRI➣Istituto per la Ricostruzione Industriale (Italy) |
| IRI➣International Research Institute for Climate Prediction |
| IRI➣Industrial Risk Insurers (Employers Reinsurance Corporation group of companies, a part of the General Electric Company) |
| IRI➣Ionospheric Research Instrument |
| IRI➣Instituto Republicano Internacional (Spanish: International Republican Institute; various locations) |
| IRI➣Industrial Research and Innovation (various organizations) |
| IRI➣Internationalized Resource Identifier |
| IRI➣Initial Requester Id |
| IRI➣Ischemic Renal Injury |
| IRI➣Indiana Robotics Invitational (Indianapolis, IN) |
| IRI➣International Reference Ionosphere |
| IRI➣Initiative and Referendum Institute (various locations) |
| IRI➣Informal Reading Inventory |
| IRI➣Internet Research Institute, Inc (Japan) |
| IRI➣Information Resources, Incorporated |
| IRI➣Intensive Reading Instruction (various locations) |
| IRI➣Information Research, Inc. (various companies) |
| IRI➣Interfaculty Reactor Institute (Delft, NL) |
| IRI➣Intercept Related Information |
| IRI➣Industrial Reporting, Inc. (Ashland, VA) |
| IRI➣Insulin Resistance Index |
| IRI➣Interfacultair Reactor Instituut |
| IRI➣Industrial Risk Insurance |
| IRI➣Infinity Resources, Inc. (marketing) |
| IRI➣Institut des Relations Internationales |
| IRI➣Interception Related Information (telecommunications) |
| IRI➣In Ranks Inspection |
| IRI➣Insurance Recovery International |
| IRI➣Inertial Reference Interface |