| Acronym | Definition |
|---|
| SFD | Sanford (Amtrak station code; Sanford, FL) |
| SFD | Sportowe Forum Dyskusyjne (Polish: Sports Discussion Forum) |
| SFD | Software Freedoom Day (open software) |
| SFD | Sequential File Description |
| SFD | Start Frame Delimiter |
| SFD | Subfile Dictionary |
| SFD | Save File Dialog |
| SFD | Structure Functional Design |
| SFD | Single Family Dwelling |
| SFD | Sedona Fire District (Sedona, AZ) |
| SFD | Social Fund for Development (Egypt and Yemen) |
| SFD | Siberian Federal District (Russia) |
| SFD | Southern Federal District (Russia) |
| SFD | Seattle Fire Department (Seattle, Washington) |
| SFD | Société Française de Dermatologie (French: French Society of Dermatology) |
| SFD | System Functional Demonstration (US Navy) |
| SFD | State Final Demand (Australian financial statistics) |
| SFD | Sacramento Fire Department (California, USA) |
| SFD | Saudi Fund for Development |
| SFD | Syracuse Fire Department |
| SFD | Standard Format for Data |
| SFD | Soil Framework Directive (EU) |
| SFD | Standard Finite Difference |
| SFD | Securities and Financial Derivatives (certification) |
| SFD | Signal Flow Diagram |
| SFD | Start of Frame Delimiter (networking) |
| SFD | Sir Francis Drake |
| SFD | Système Financier Décentralisé (French: Decentralized Financial System; various locations) |
| SFD | Standby Flight Display |
| SFD | Surrey Fire Department (Canada) |
| SFD | Sorsby's Fundus Dystrophy |
| SFD | Sandusky Fire Department (Ohio) |
| SFD | Simplified Frontier Declaration (customs) |
| SFD | Shear Force Diagram |
| SFD | Structured Finance Division (various locations) |
| SFD | Single Function Device |
| SFD | Saturation Flux Density (satellite communications) |
| SFD | Static Frequency Divider |
| SFD | Single-Family Detached Housing (real estate) |
| SFD | Société Francophone de Dialyse (French: Francophone Society of Dialysis) |
| SFD | Southern Ford Dealers |
| SFD | Spectral Flux Distribution |
| SFD | State Forest District (various locations) |
| SFD | Straight Forward Dealing |
| SFD | Sofdec (Dreamcast movie format) |
| SFD | Stub Types for Deletion (Wikimedia Foundation) |
| SFD | Separator Filter Dryer (compressed air system) |
| SFD | Symbolic File Directory |
| SFD | Société Francophone du Diabète (French: Francophone Society of Diabetes) |
| SFD | Source-Film-Distance (radiography) |
| SFD | Schenectady Fire Department |
| SFD | Sudden Frequency Deviation |
| SFD | Street Fighter Devotion (gaming community) |
| SFD | Semiautonomous Flight Director |
| SFD | Shepherdstown Fire Department (Shepherdstown, WV) |
| SFD | Submission for Decision (various locations) |
| SFD | Simplified Flow Diagram |
| SFD | Scotia Fire Department (Scotia, New York) |
| SFD | System Functional Diagram |
| SFD | Société Française de Déménagement (French: French Moving Company) |
| SFD | Suffield Fire Department (Connecticut, USA) |
| SFD | Sampling Frequency Detector |
| SFD | Spécification Fonctionnelle Détaillée (French: Detailed Functional Specification) |
| SFD | Slurry Flow Difference |
| SFD | Swing Fire Door |
| SFD | Store Front Deluxe |
| SFD | Suburban Filter Dryer |
| SFD | Signal Flow/Function Diagram |
| SFD | Symphysis-Fundus Distance |