| Acronym | Definition |
|---|
| FMDI➣Federación Madrileña de Deportes de Invierno (Spanish: Madrid Federation of Winter Sports; Madrid, Spain) |
| FMDI➣Formation Minimale de Découverte et d'Initiation (French: Minimum Discovery and Initiation Training) |
| FMDI➣Formation Maintenance Développement Informatique (French computer company) |
| FMDI➣Formant-Frequency Modulation Detection Interference |