| Acronym | Definition |
|---|
| IM➣Instant Message |
| IM➣IMAC (Apple Computer) |
| IM➣Intramuscular |
| IM➣Intermodulation |
| IM➣Important Message |
| IM➣Instant Messenger |
| IM➣Information Management |
| IM➣Image (mathematics) |
| IM➣International Master (chess) |
| IM➣Instant Messaging |
| IM➣Internal Medicine (journal) |
| IM➣Iron Man |
| IM➣Internet Multimedia |
| IM➣Internet Marketing (various companies) |
| IM➣Identity Management (information security) |
| IM➣Iron Maiden (band) |
| IM➣Instruction Manual |
| IM➣Isle of Man |
| IM➣Infected Mushroom (band) |
| IM➣Individual Medley (swimming) |
| IM➣International Marketing |
| IM➣Intake Manifold (automotive) |
| IM➣Instrumental Music |
| IM➣Installation Manual |
| IM➣Institute of Management |
| IM➣Ingram Micro (various locations) |
| IM➣Instrumentation and Measurement |
| IM➣Income Maintenance |
| IM➣Intramural |
| IM➣Imola (Emilia Romagna, Italy) |
| IM➣Infrastructure Manager (software) |
| IM➣Ice Maker |
| IM➣Institute of Medicine (federal health advisory group) |
| IM➣Industrial Manufacturing |
| IM➣Imatinib Mesylate (oncology) |
| IM➣Interface Module |
| IM➣Injection Molding (plastics) |
| IM➣Installation & Maintenance |
| IM➣Information Model |
| IM➣Indian Mujahideen (India) |
| IM➣Impossible Mission |
| IM➣Implementation Manager (various companies) |
| IM➣Índice de Miseria (Spanish: Misery Index; economics) |
| IM➣Incoming Message |
| IM➣Infamous Mobb (band) |
| IM➣Installation Manager (IBM) |
| IM➣Incredible Miracle (gaming clan) |
| IM➣Integration Manager |
| IM➣Infectious Mononucleosis |
| IM➣Investment Memorandum |
| IM➣Indian Meridian (Oklahoma) |
| IM➣Interactive Metronome (developmental aid) |
| IM➣Inventory Manager |
| IM➣Initial Margin (investing) |
| IM➣Instruction Memorandum (US DOI) |
| IM➣Information Memory |
| IM➣Individual Membership |
| IM➣Index Medicus |
| IM➣Individuell Manniskohjalp (Swedish aid organization; est. 1938) |
| IM➣Intermodulation Distortion |
| IM➣Instrument Module |
| IM➣Interim Measure |
| IM➣Intermediate Moisture (rations) |
| IM➣Institutional Methodology (student financial aid) |
| IM➣Inoffizieller Mitarbeiter (Political Police Informer, GDR) |
| IM➣Inoffizielle Mitarbeiter (German: Unofficial Collaborator) |
| IM➣Inherent Moisture (coal quality indicator) |
| IM➣Intestinal Metaplasia (gastroenterology) |
| IM➣Integration Management |
| IM➣Institutional Management |
| IM➣Indianapolis Monthly (magazine) |
| IM➣Immaculate Machine (band) |
| IM➣Instituto de La Mujer (Spanish: Institute for Women; Spain) |
| IM➣Imperia, Liguria (Italian province) |
| IM➣Insensitive Munitions |
| IM➣Integrated Network Management |
| IM➣Integrity Monitoring |
| IM➣Intensity Modulation |
| IM➣Intermediate Maintenance |
| IM➣Inspection Manual |
| IM➣Interface Manager |
| IM➣Innovaciones Médicas (Spanish: Medical Innovations) |
| IM➣Implementation Model |
| IM➣Interstate Maintenance |
| IM➣Information Memorandums |
| IM➣Interceptor Missile |
| IM➣Incident Meteorologist (various organizations) |
| IM➣Inserto Metálico (Spanish: Metal Insert) |
| IM➣Inside Macintosh |
| IM➣Interest Management |
| IM➣Item Master (inventory) |
| IM➣IP-based Multimedia |
| IM➣Internet Medicine (journal) |
| IM➣Interaction Manager |
| IM➣Inner Marker (aviation; part of instrument landing system) |
| IM➣Instrument Manager |
| IM➣Investigators Meeting (various organizations; clinical medical research) |
| IM➣Insuficiencia Mitral (Spanish: Mitral Insufficiency) |
| IM➣Indus Music |
| IM➣Instrumentman (USN Rating) |
| IM➣Impulse Modulation |
| IM➣Independence Medal (Papua New Guinea) |
| IM➣Ideas in Movement (San Marino) |
| IM➣Interface Multiplexer |
| IM➣Ingot Metallurgy |
| IM➣Iterative Matching |
| IM➣Interrupt Modulation |
| IM➣Injection Margin |
| IM➣Infant Mystics (Mystic Mardi Gras society; Mobile, Alabama) |
| IM➣Impression Motivation |
| IM➣Implementation Memo |
| IM➣Intelligence Memoranda (NIMA) |
| IM➣Index Meducus |
| IM➣Interconnect Monitor |
| IM➣Ionospheric Mapper |
| IM➣Intermediate Level Maintainer |
| IM➣Impact Memorandum |
| IM➣Impurity Stimulation |
| IM➣Item Management/Manager |