| Acronym | Definition |
|---|
| NRI | Non-Resident Indian |
| NRI | National Resources Inventory |
| NRI | Nomura Research Institute (Tokyo, Japan) |
| NRI | Natural Resources Institute |
| NRI | National Rejectors, Inc. (various locations) |
| NRI | Norepinephrine Reuptake Inhibitor (psychopharmacology) |
| NRI | National Research Initiative (USDA) |
| NRI | Non-Resident Importer |
| NRI | Networked Readiness Index |
| NRI | Nuvo Research, Inc. (Canada) |
| NRI | National Research Institute |
| NRI | Natural Resources Inventory |
| NRI | Net Revenue Interest |
| NRI | Nanosystem Research Institute (Japan) |
| NRI | NASMHPD Research Institute |
| NRI | Nanoelectronics Research Initiative |
| NRI | Negative Refractive Index |
| NRI | Non-Resident International (various organizations) |
| NRI | Non-Roster Invitee (baseball) |
| NRI | Nunavut Research Institute |
| NRI | Not Really Interested |
| NRI | Nippon Research Institute (Japan) |
| NRI | Net Radio Interface |
| NRI | Net Resources International |
| NRI | Non-Returning-Indian |
| NRI | Non Residential Indian |
| NRI | Neural Response Imaging (audiology) |
| NRI | Network of Relationships Inventory (psychology) |
| NRI | Nonwovens Report International (textile magazine) |
| NRI | Network Resource Identifier (3GPP) |
| NRI | Non Recurring Item (finance) |
| NRI | Northern Realities, Inc. |
| NRI | National Recovery Institutes |
| NRI | Nominal Ranging Interval |
| NRI | Net Radio Interference |
| NRI | National Remembrance Institute |
| NRI | Normalized Reliability Importance |
| NRI | Nonrecurring Investment |
| NRI | Norris Rentals, Inc |
| NRI | Non-Repairable Item |
| NRI | National Republic of Iran |