| Acronym | Definition |
|---|
| MID | Middle |
| MID | Modesto Irrigation District (California) |
| MID | Musical Instrument Digital Interface (file extension) |
| MID | Multi-Information Display |
| MID | Message Identifier (ATM) |
| MID | Mentioned in Dispatches |
| MID | Measuring Instruments Directive |
| MID | Mechanized Infantry Division |
| MID | Mild Intellectual Disability (special education) |
| MID | Molded Interconnect Device |
| MID | Military Intelligence Detachment |
| MID | Militarized Interstate Dispute |
| MID | Master of Industrial Design |
| MID | Militaire Inlichtingendienst |
| MID | Metropolitan Improvement District (Seattle, WA) |
| MID | Management Initiative Decision (US government) |
| MID | Multimedia Instructional Design |
| MID | Manager in Development (restaurants) |
| MID | Minimum Infective Dose |
| MID | Maritime Identification Digit |
| MID | Master of International Development (University of Pittsburgh) |
| MID | Ministry of Information Development (Moldova) |
| MID | Military Intelligence Digest |
| MID | Mirror Image Design |
| MID | Ministerstvo Inostrannyh Del (Russian: Ministry of Foreign Affairs) |
| MID | Memory Identifier |
| MID | Mobile Intelligent Device (mobile phone with the PDA and digital camera) |
| MID | Minimum Inhibitory Dilution |
| MID | Message Identification Character |
| MID | Mouse Infective Dose |
| MID | Multiple Interface Device |
| MID | Mechanical Interface Drawing |
| MID | Modular Input Device |
| MID | Mentioned in Dispatch (British award) |
| MID | Maintenance Instruction Document |
| MID | Miniature Imager Device |
| MID | Morpho-semantic class IDentifier |
| MID | Message Input Device |
| MID | Merida, Yucatan, Mexico - Merida International (Airport Code) |
| MID | Major Identification Sign (marketing) |
| MID | Management of Information Department |
| MID | Ministry of Internal Defence |
| MID | Made in Detroit (Detroit, MI) |
| MID | Midfield |
| MID | Most Important Document (insurance) |
| MID | Mortgage Interest Deduction (taxes) |
| MID | Mobile Internet Device |