| Acronym | Definition |
|---|
| MSAI➣Malaysian Society of Allergy and Immunology |
| MSAI➣Mobile Standard Alliance of India |
| MSAI➣Migrant Savings for Alternative Investments |
| MSAI➣Member of the Society of Architectural Illustration (UK) |
| MSAI➣Messenger Service Association of Illinois (Chicago, IL) |
| MSAI➣Myocardial Stress Adaptation Index (cardiology) |