| Acronym | Definition |
|---|
| FMSN➣Fabrika Motora Specijalne Namjene (Serbian: Engine Factory Special Purposes) |
| FMSN➣Fonds Mondial de Solidarité Numérique (French: Global Digital Solidarity Fund; Tunisia) |
| FMSN➣Tanandava Samangoky (Madagascar airport code) |
| FMSN➣Fédération Mondiale des Sociétés de Neurochirurgie (French: World Federation of Neurosurgical Societies) |