| Acronym | Definition |
|---|
| INRA | Institut National de la Recherche Agronomique (French: National Institute for Agricultural Research; Paris, France; est. 1946) |
| INRA | Instituto Nacional de Reforma Agraria (Spanish: National Institute for Agrarian Reform; various nations) |
| INRA | Inland Northwest Research Alliance |
| INRA | International Nuclear Regulators Association (est. 1997) |
| INRA | Institute for Natural Resources in Africa |
| INRA | International Natural Rubber Agreement |
| INRA | International Nuclear Recycling Alliance |
| INRA | Iesus Nazerenus Rex Iudaeorum (Jesus of Nazareth, King of the Jews) |
| INRA | Illinois Norsk Rosemalers Association |
| INRA | Informatie en Rekencentrum Autoverzekeringen |
| INRA | International Network Routing Addresses |
| INRA | Intergalactic Naval Research Arm |