| MISA | Macarthur Independent Schools Association 
| Others |
| MISA | Madeline Island School of Arts
| Others |
| MISA | Madeline Island School of the Arts
| Others |
| MISA | Maintenanance of Internal Security Act
| Others |
| MISA | Maintenance of Internal Security Act
| Others |
| MISA | Management Information Systems Association
| Others |
| MISA | Management of Information Systems Association
| Others |
| MISA | Maryland Integrated Science Assessments
| Others |
| MISA | Maryland Investigators and Security Association
| Others |
| MISA | Massage in Schools Association
| Others |
| MISA | Materials Innovation for Sustainable Agriculture
| Others |
| MISA | McGill Ingestive Skills Assessment
| Others |
| MISA | Media Institute of Southern Africa
| Others |
| MISA | Mental Illness and Substance Abuse
| Others |
| MISA | Mental Illness Substance Abuse
| Others |
| MISA | Metals and Inorganics Sectoral Approach
| Others |
| MISA | Metals and Inorganics Sectorial Approach
| Others |
| MISA | Microsoft Intelligent Security Association
| Others |
| MISA | Military Impacted Schools Association
| Others |
| MISA | Minnesota Institute for Sustainable Agriculture
| Others |
| MISA | Minnesota International Student Association
| Others |
| MISA | Missoula Indoor Soccer Arena
| Others |
| MISA | Missoula Indoor Sports Arena
| Others |
| MISA | Misuse of Inter Service Act
| Others |
| MISA | Mobile Pci to Isa
| Others |
| MISA | Morse Islanders Student Alliance
| Others |
| MISA | Mortgage Interest Saver Account
| Others |
| MISA | Motor Industry Safety Association
| Others |
| MISA | Motor Industry Staff Association
| Others |
| MISA | Multicultural and International Student Affairs
| Others |
| MISA | Municipal Industrial Strategy for Abatement
| Others |
| MISA | Municipal Information System Association
| Others |
| MISA | Municipal Information Systems Association
| Others |
| MISA | Municipal Infrastructure Support Agent
| Others |
| MISA | Music In Summer Air
| Others |