| Acronym | Meaning |
| FSD | Facilities Services Division (various organizations) |
| FSD | Fairview School District (Pennsylvania) |
| FSD | Family Support Division |
| FSD | Fayetteville School District (Arkansas) |
| FSD | Feasibility Study Document |
| FSD | Federal Security Directorates (US Department of Homeland Security) |
| FSD | Federal Service Desk (US General Services Administration) |
| FSD | Federal Systems Division |
| FSD | Fee Simple Determinable (property classification) |
| FSD | Field Systems Directorate |
| FSD | Field Systems Division |
| FSD | Final Scope Document |
| FSD | Final Supplementary Declaration (UK) |
| FSD | Financial Service Department |
| FSD | Financial Support Direction |
| FSD | Financial Systems Division (various organizations) |
| FSD | Fire Safety Director (various locations) |
| FSD | Fire Separation Distance (building code) |
| FSD | Fire Services Department (Hong Kong) |
| FSD | Fire System Deficiency (US FEMA) |
| FSD | First Scheduled Delivery |
| FSD | Fiscal Services Director |
| FSD | Fleet Services Division (NYPD) |
| FSD | Flexible Spare Distribution |
| FSD | Flight Support Division |
| FSD | Flying Spot Digitizer |
| FSD | Fonctionnaire de Sécurité de Défense (French: Defense Security Officer) |
| FSD | Fonds Social de Développement (French: Social Development Fund) |
| FSD | Forecast Support Date |
| FSD | Foreign Sea Duty |
| FSD | Foreign Service Dispatch |
| FSD | Forensic Services Division (US FEMA) |
| FSD | Forest Survey Division (Nepal) |
| FSD | Forward Sited Depot |
| FSD | Front for Socialism and Democracy (Senegal) |
| FSD | Fuel Supply Depot |
| FSD | Full Scale Development |
| FSD | Full Spectrum Dominance |