| Acronym | Definition |
|---|
| IMC | Internet Mail Consortium |
| IMC | Independent Media Center |
| IMC | International Medical Corps |
| IMC | Instructional Media Center |
| IMC | Integrated Marketing Communications |
| IMC | Indice de Masse Corporelle (French: Body Mass Index) |
| IMC | Institute of Management Consultants |
| IMC | International Music Council (UNESCO) |
| IMC | International Mechanical Code (construction) |
| IMC | Instrument Meteorological Conditions (aviation) |
| IMC | Índice de Masa Corporal (Spanish) |
| IMC | Infirme Moteur Cérébral (French: Cerebral Palsy) |
| IMC | Internal Model Control |
| IMC | Ironman Canada |
| IMC | Independent Monitoring Commission (UK) |
| IMC | Intermetallic Compound |
| IMC | Investment Management Certificate |
| IMC | Indian Merchants Chamber |
| IMC | Intermediate Metal Conduit (engineering) |
| IMC | Industrial Medical Council |
| IMC | Instrument Meteorological Condition(s) |
| IMC | Image Motion Compensation |
| IMC | International Mining Consultants (UK) |
| IMC | Integrative Medicine Center |
| IMC | International Monetary Conference |
| IMC | In My Campaign (role-playing games) |
| IMC | Information Management Corporation |
| IMC | Integrated Maintenance Concept |
| IMC | Information Management Congress |
| IMC | Consolata Missionaries (religious order) |
| IMC | Invention Machine Corporation |
| IMC | International Morse Code |
| IMC | Internet Message Center |
| IMC | Installation Management Command (US Army) |
| IMC | Internal Management Control |
| IMC | International Microwave Corporation |
| IMC | Investment Management Committee |
| IMC | Issue Management Council |
| IMC | Internet Ministry Conference |
| IMC | Intima-Media Complex (vascular wall morphology) |
| IMC | Interagency Modeling Center (US Army) |
| IMC | Intermud Communications (protocol) |
| IMC | Information Management Commission (Colorado) |
| IMC | Indiana Metal Craft |
| IMC | Illusionary Minds Chat |
| IMC | Item Management Code |
| IMC | Integration Marketing & Communications |
| IMC | Interim Message Change |
| IMC | Industrial Microphotonics Company |
| IMC | Indy Music Channel |
| IMC | International Master Councilor (International Order of DeMolay) |
| IMC | International Micrographic Congress |
| IMC | Industrial Mobilization Capacity |
| IMC | Integrated Market Communication (less common) |
| IMC | Incident Management Center |
| IMC | Intercollegiate Men's Choruses, Inc |
| IMC | Information Management Concept |
| IMC | Impedance Matrix Compression (computational electromagnetics) |
| IMC | Integrated Management Control |
| IMC | International Maintenance Center |
| IMC | Chief Instrumentman (Naval Rating) |
| IMC | Intensive Mixing Cascade |
| IMC | Instituto Mayor Campesino (Spanish: Main Agricultural Institute) |
| IMC | Industrial Modernization Center, Inc. (Williamsport, PA) |
| IMC | Integration Management Council |
| IMC | Integrated Maneuver Controller |
| IMC | IMSI Management Council |
| IMC | Iron Man Competition |
| IMC | International Meetings & Conventions |
| IMC | Issue Management and Communications |
| IMC | Integrated Management Center |
| IMC | Integral Midwall Cooling |
| IMC | Intercontinental Marketing Corporation |
| IMC | International Metalworking Companies BV |
| IMC | Iloilo Mountaineering Club, Inc. (Philippines) |
| IMC | International Meteorological Commission |
| IMC | Information Management Controller |
| IMC | Illinois Mennonite Conference |
| IMC | Intermountain Mortgage Corporation (Montana) |
| IMC | Integrated Management Concept |
| IMC | Industrial Mobilization Costs |
| IMC | Inert Mine with Collar |
| IMC | Instrumented Multi-Spectral Cue |
| IMC | Intermediate Metal/Metallic Conduit |
| IMC | International Maar Conference |
| IMC | Interface Management Card |
| IMC | Indiranagar Methodist Church (India) |
| IMC | Iron Mines Company of Venezuela |
| IMC | International Monarchist Conference |
| IMC | Institut Mondial du Charbon (French: World Coal Institute) |
| IMC | Institute for Mining, Clausthal |
| IMC | Independent Methodist Church (various locations) |
| IMC | Investment Management Consultants (various locations) |
| IMC | Information Media Center (various locations) |
| IMC | Instant Messaging and Chat (software) |
| IMC | Indianapolis/Marion County Communications (Indiana) |
| IMC | Illinois Medical Center (University of Illinois) |
| IMC | Incorporated Management Committee (education; Hong Kong) |
| IMC | Isotype-Matched Control |
| IMC | Inter-Ministerial Commission (various locations) |
| IMC | Irwin Mortgage Corporation (various locations) |