| Acronym | Definition |
|---|
| IMI | International Masonry Institute (Washington, DC) |
| IMI | Institute of the Motor Industry |
| IMI | Israel Military Industries |
| IMI | International Market Insight |
| IMI | Interactive Multimedia Instruction |
| IMI | Imposto Municipal Sobre Imóveis (Portugal) |
| IMI | Institut Métapsychique International (French) |
| IMI | Irish Management Institute |
| IMI | Information Management Institute |
| IMI | Institut des Materiaux Industriels (French: Canada Research Council) |
| IMI | Industrial Materials Institute (Canada) |
| IMI | Institute of Medical Illustrators |
| IMI | International Mycological Institute |
| IMI | Internati Militari Italiani (in Germania 1943-45) |
| IMI | Independent Media Institute (San Francisco, CA) |
| IMI | I Missed It |
| IMI | International Maintenance Institute |
| IMI | Innovative Manufacturing Initiative (UK) |
| IMI | Informed Market Intelligence |
| IMI | Institut für Medizinische Informatik, Statistik und Dokumentation (Karl-Franzens-Universität Graz, Austria) |
| IMI | International Marketing Institute |
| IMI | International Meteorological Institute (Stockholm, Sweden) |
| IMI | InterModulation Interference |
| IMI | Improved Manned Interceptor |
| IMI | Industria Militar Israelí (Israel weapons industry) |
| IMI | Imamia Medics International |
| IMI | Inner Magnetosphere Imager |
| IMI | Integrative Medicine Institute |
| IMI | Installation and Maintenance Instructions |
| IMI | Intra Muscular Injection |
| IMI | Investment Management Institution(s) |
| IMI | International Medical Implant |
| IMI | Incoming Material Inspection |
| IMI | international military information (US DoD) |
| IMI | International Hotel, Tourism and Culinary Management Institutes (Switzerland) |
| IMI | Initial Maintenance Interval |
| IMI | Initial Mode Identification |
| IMI | Inter-Process Method Invocation |
| IMI | Intensely Managed Item |
| IMI | Instant Messaging over the Internet |
| IMI | International Mercantile Industries, Inc |
| IMI | Integrated Machinery Inspection (engineering) |
| IMI | Identity Management Institute (Chatsworth, CA) |
| IMI | Instituto de Matemática Interdisciplina (Spanish: Institute of Interdisciplinary Mathematics) |
| IMI | Institute of Medical Informatics (various locations) |