| MHPA | Mangdechhu Hydroelectric Project Authority
| Others |
| MHPA | Master of Health Policy and Administration
| Others |
| MHPA | Mayo Health Plan Arizona
| Others |
| MHPA | Medicaid Health Plans of America
| Others |
| MHPA | Mental Health Parity Act
| Others |
| MHPA | Mental Health Peer Advocate
| Others |
| MHPA | Mental Health Peer Advocates
| Others |
| MHPA | Mental Health Procedures Act
| Others |
| MHPA | Mental Health Professional Associates
| Others |
| MHPA | Michigan Horseshoe Pitchers Association
| Others |
| MHPA | Milford Haven Port Authority
| Others |
| MHPA | Minnesota Honey Producers Association
| Others |
| MHPA | Multi Habitat Planning Area
| Others |
| MHPA | Palmerola, Honduras
| Others |