| FIRM | Fair Immigration Reform Movement
| Others |
| FIRM | Fair Insurance Rates in Monroe
| Others |
| FIRM | Fellowship of Israel Related Ministries
| Others |
| FIRM | Field Inspection Reference Manual
| Others |
| FIRM | Film Industry Reform Movement
| Others |
| FIRM | Fiske Independent Race Management
| Others |
| FIRM | Flood Insurance Rate Map
| Others |
| FIRM | Formal Inference Recursive Modeling
| Others |
| FIRM | Franks Infra Red Messenger
| Others |
| FIRM | Freedom and Individual Rights in Medicine
| Others |
| FIRM | Fresno Interdenominational Refugee Ministries
| Others |
| FIRM | Future Information Research Management
| Others |