| Acronym | Definition |
|---|
| FMAS | Fédération Monégasque des Activités Subaquatiques (French: Monegasque Federation of Underwater Activities) |
| FMAS | Forensic Medical Advisory Service (est. 1980; Washington, DC) |
| FMAS | Florida Marine Aquarium Society (Miami, FL) |
| FMAS | Faculty of Media, Arts and Society (academics) |
| FMAS | Financial Managerial Accounting System |
| FMAS | Financial Management and Accounting Services |
| FMAS | Fleet Management Analysis System |
| FMAS | Fellowship of the Association of Minimal Access Surgeons of India |
| FMAS | Financial Mathematics and Actuarial Science (University College Cork; Ireland) |
| FMAS | Facility Maintenance and Administration System |