| Abbreviation | Definition |
|---|---|
| MISD | Manor Independent School District |
| MISD | Mansfield Independent School District |
| MISD | Marion Independent School District |
| MISD | Marshall Independent School District |
| MISD | McAllen Independent School District |
| MISD | McKinney Independent School District |
| MISD | Menominee Indian School District |
| MISD | Mercedes Independent School District |
| MISD | Mercer Island School District |
| MISD | Mesquite Independent School District |
| MISD | Michigan Intermediate School District |
| MISD | Midland Independent School District |
| MISD | Midlothian Independent School District |
| MISD | Montgomery Independent School District |
| MISD | Murray Independent School District |
| MISF | Minnesota Independent School Forum |
| MISIS | Middlesex Integrated Student Information System |
| MISJ | Melbourne International School of Japanese |
| MISPA | Mercury Internet School of Psychological Astrology |
| MISPH | Milken Institute School of Public Health |