| Acronym | Meaning |
| FMI | Failure Mode Indicator |
| FMI | Federal Meteorological Institute |
| FMI | Field Manual Interim |
| FMI | Field Modification Instruction |
| FMI | Financial Management Initiative (UK) |
| FMI | Finnish Meteorological Institute |
| FMI | Focus Mission Interferometer |
| FMI | Force Module Identifier |
| FMI | Foreign Military Interaction |
| FMI | Framework for the Management of Information (Canada) |
| FMI | Functional Management Inspection |
| FMI | Fundo Monetário Internacional (Portuguese: International Monetary Fund) |