| Acronym | Definition |
|---|
| FDD | Floppy Disk Drive |
| FDD | Frequency Division Duplex |
| FDD | Franchise Disclosure Document |
| FDD | Feature-Driven Development |
| FDD | Feature-Driven Development (software development methodology) |
| FDD | Forum for Democracy and Development (Zambia) |
| FDD | Foundation for the Defense of Democracies |
| FDD | Functional Decomposition Diagram |
| FDD | Fonds pour le Développement Durable (French: Sustainable Development Fund; Switzerland) |
| FDD | Faculté de Droit (French: Law School; Togo) |
| FDD | Flexible Disk Drive |
| FDD | Financial Due Diligence |
| FDD | Forces for the Defense of Democracy (Burundi) |
| FDD | Fault Detection and Diagnosis |
| FDD | Fixed Disk Drive |
| FDD | Frequency Diversity Duplex |
| FDD | Fluorescent Differential Display |
| FDD | Fonds de Dotation (French: Endowment Fund) |
| FDD | Faune et Développement Durable (French: Wildlife and Sustainable Development; EU) |
| FDD | Father Daughter Dance |
| FDD | Functional Design Document |
| FDD | Focused District Development (NATO) |
| FDD | Full Deployment Decision |
| FDD | Food Distribution Division (USDA) |
| FDD | Familial Danish Dementia |
| FDD | Final Delivery Date |
| FDD | Fault Detection Diagnostic |
| FDD | First Digitized Division |
| FDD | Freight, Demurrage and Defense (also seen as FD&D; shipping industry) |
| FDD | Ferrari Démolition Désamiantage (French demolition company) |
| FDD | Frequency of Drinking Days |
| FDD | Freezing Degree Days |
| FDD | Fixed Date Departure (travel) |
| FDD | Force Design Division |
| FDD | Fire Department Directory |
| FDD | Functional Decision Diagram |
| FDD | Façades Dallages et Déco (French building renovation company) |
| FDD | First Dollar Defense (insurance) |
| FDD | First Due Date |
| FDD | Formation Diplômante Dérogatoire (French: Derogatory Diploma Course) |
| FDD | Force Design Directorate |
| FDD | Facility Design Description |
| FDD | Functional Description Document |
| FDD | Foreign Documents Division |
| FDD | Financial Data Disseminator |
| FDD | Force Design and Development |
| FDD | Functional Decomposition Design |
| FDD | Farm Ditch Density |
| FDD | Formal Domain Definition |
| FDD | Flexible Delivery Development (Sprint) |
| FDD | Floating Digital Drive |
| FDD | Family Double Dare (TV show) |
| FDD | Fábrica do Design |
| FDD | Filthy Difiler Disgrace |
| FDD | Fisheries Development Department |