| Abbreviation | Definition |
|---|---|
| MPPA | Messer Pond Protective Association |
| MPPA | Minnesota Pork Producers Association |
| MPSA | Malta Pharmaceutical Students' Association |
| MPSA | Managed Print Services Association |
| MPSA | Metropolitan Police's Sikh Association |
| MPSA | Midwest Political Science Association |
| MPSA | Mississippi private school association |
| MPTA | Michigan Physical Therapy Association |
| MPTA | Michigan Public Transit Association |
| MPTA | Minnesota Professional Towing Association |
| MPTA | Minnesota Public Television Association |
| MPTA | Minnesota Public Transit Association |
| MPTA | Mississippi Physical Therapy Association |
| MPTA | Missouri Physical Therapy Association |
| MPTA | Missouri Public Transit Association |
| MPVA | Marine Park Volleyball Association |
| MPVA | Miami Police Veterans Association |
| MPVA | Midwest Professional Volleyball Association |
| MPVA | Minnesota Professional Videographers Association |
| MPVA | Mornington Peninsula Vignerons Association |