| Acronym | Definition |
|---|
| SDD | SQL (Structured Query Language) Database Developer |
| SDD | Solution Deployment Descriptor |
| SDD | Solution Deployment Descriptor (OASIS) |
| SDD | Stardust Dragon (Yu-Gi-Oh card; gaming) |
| SDD | Social Dimensions of Development |
| SDD | Sudan Dinar (Currency Unit, ISO) |
| SDD | System Development and Demonstration |
| SDD | Senior Deputy Director (various organizations) |
| SDD | Service Deployment Descriptor |
| SDD | Siobhan Davies Dance (UK) |
| SDD | Sensory Discrimination Disorder (neurological disorder) |
| SDD | Storage Device Division (computer storage; Toshiba) |
| SDD | Severe Developmental Disability |
| SDD | Software Design Description |
| SDD | Software Detailed Design |
| SDD | Software Description Database |
| SDD | System Distribution Directory |
| SDD | Subscriber Data Document |
| SDD | Satellite Demodulator and Decoder |
| SDD | Subsystem Device Driver |
| SDD | Secure Device Deployment |
| SDD | Smart Diary Suite Data |
| SDD | Super Density Disk |
| SDD | Storage Device Division |
| SDD | Sammlung Deutscher Drucke (German: Collection of German Prints) |
| SDD | Silicon Drift Detector |
| SDD | SAS Drug Development |
| SDD | System Design and Development |
| SDD | Software Design Document |
| SDD | Subsystem Device Driver (IBM-ESS) |
| SDD | Secure Document Destruction (various locations) |
| SDD | Sustainable Design and Development |
| SDD | Selective Decontamination of the Digestive Tract |
| SDD | Software Design and Development |
| SDD | System Design Document |
| SDD | Speed Detection Device (various locations) |
| SDD | Software Distribution Directory (Novell) |
| SDD | San Diego Dialogue (San Diego, CA) |
| SDD | System Description Document |
| SDD | Solution Definition Document |
| SDD | Software Description Document |
| SDD | System Design Description |
| SDD | Scottish Development Department (for pollution) |
| SDD | Salle de Douches (French: shower room) |
| SDD | San Diego Division (Hewlett-Packard) |
| SDD | Segment Design Document |
| SDD | Situation Data Display |
| SDD | Same Day Delay |
| SDD | Student Development Department (various organizations) |
| SDD | Standard Delivery Date |
| SDD | Subantimicrobial-Dose Doxycycline |
| SDD | Soft Decision Decoding |
| SDD | Supplier Diversity Development |
| SDD | Specific Developmental Disorder |
| SDD | Solution Design Document |
| SDD | Store Door Delivery (shipping) |
| SDD | Scheduled Delivery Date |
| SDD | Secure Data Device |
| SDD | System Development Division (IBM) |
| SDD | Single-Symbol Decodable Design |
| SDD | Silicon Drift Diode |
| SDD | Secure Document Delivery |
| SDD | Snoop Doggy Dog |
| SDD | Staff Development Division (various organizations) |
| SDD | Software Development Document |
| SDD | Song and Drama Division (India) |
| SDD | Symbolic Defined Device |
| SDD | Software Data Dictionary |
| SDD | Software Development Department |
| SDD | Solar Diffuser Door |
| SDD | Security Due Diligence |
| SDD | Second Digitized Division (US Army) |
| SDD | Services and Development Division |
| SDD | Soft Decision Demodulation |
| SDD | Security Design Description |
| SDD | Stutter Dialing Device |
| SDD | Strictly Diagonal Dominance |
| SDD | System Definition Directive |
| SDD | Scuba Doo Divers |
| SDD | Separate Differential Detection |
| SDD | Shuttle Design Directive (US NASA) |
| SDD | Small Discrete Devices |
| SDD | Subject Drop Device |
| SDD | Set Decision Diagram (computers) |
| SDD | Software Dependability Demonstration |
| SDD | Solvent Decantation Department |
| SDD | Soft Design Document |
| SDD | Service Delivery Dashboard |
| SDD | System Dependent Data |
| SDD | Séisme de Dimensionnement (French: Designed Earthquake) |
| SDD | SEPA (Single Euro Payments Area) Direct Debit (regulatory system to harmonize direct debit payments across Europe) |