IMI is a three letter acronym. It can stand for
- Industrial Vibration Monitoring Instrumentation, division of PCB Piezotronics
- Indian Music Industry
- Innovative Medicines Initiative of the European Union
- Integrated Microelectronics, Inc.
- Intelligent Medical Imaging, defunct medical equipment manufacturer in Florida
- Intermodulation interference
- International Hotel Management Institute Switzerland Switzerland
- International Management Institute
- International Management Institute (India)
- International Institute for Management Development (IMD), Switzerland
- Kalaidos University of Applied Sciences, Switzerland
- International Mediation Institute
- The Institute of the Motor Industry, a professional organisation for the UK automotive industry
- International Mycological Institute
- Intramuscular Injection
- Immature Myeloid Information, Immature Myeloid Index (AML)
- IMI plc (formerly Imperial Metal Industries Limited)
- Irish Management Institute
- Israel Military Industries
- Israel Music Institute
- Institute of Mathematics and Informatics (Bulgarian Academy of Sciences)
- Internal Market Information System (IMI)
- Italian military internees