| MAC | Media Access Control Address |
| MBA | Master of Business Administration |
| MBBS | Bachelor of Medicine & Bachelor of Surgery |
| MC | Menstrual Cycle |
| MCA | Master of computer applications |
| MCQ | Multiple Choice Question |
| MCVC | Minimum Competency Vocational Courses |
| MI | Xiaomi, Mumbai Indians, Mission Impossible |
| MIS | Management information systems |
| MLA | Member of Legislative Assembly |
| MLC | Member of Legislative Council |
| Mouse | Manually operated user selection equipment |
| MPSC | Maharashtra Public Service Commission |
| MRP | Maximum Retail Price |
| MSME | Micro, Small & Medium Enterprises |
| MSP | Minimum Support Price |
