| Acronym | Definition |
|---|
| SLD | Statute Law Database (UK) |
| SLD | Specific Learning Disabilities |
| SLD | Sojusz Lewicy Demokratycznej (Democratic Left Alliance, Poland) |
| SLD | Second Level Domain |
| SLD | System Landscape Directory (SAP) |
| SLD | Sliding Door |
| SLD | Schools and Libraries Division (USAC) |
| SLD | Styled Layer Descriptor |
| SLD | Side Loading Door |
| SLD | Second Line of Defense |
| SLD | Single Line Diagram (power system schematic) |
| SLD | Severe Learning Disability |
| SLD | Super-Luminescent Diode |
| SLD | Straight Line Diagram (roadway) |
| SLD | Specific Learning Disorder |
| SLD | Social and Liberal Democrats (UK political party) |
| SLD | Specific Language Disability (Dyslexia) |
| SLD | Scattering Length Density |
| SLD | Senior Leader Development (US Army) |
| SLD | Source-Level Debugger |
| SLD | Sauver le Darfour (French: Save Darfur) |
| SLD | Service Level Description (Service Level Agreements) |
| SLD | Supercooled Large Drops |
| SLD | Special Learning Disability |
| SLD | Single Lens Digital (cameras) |
| SLD | Sonic Layer Depth |
| SLD | system link designator (US DoD) |
| SLD | Single Line Drawing |
| SLD | Spiritual Life Director |
| SLD | Scheduled Lightpath Demand |
| SLD | Slow Long Distance (training method) |
| SLD | Speed Limiting Device (automotive; India) |
| SLD | Slow Learning Disability |
| SLD | Slavic Language Division (ATA) |
| SLD | Super-Cooled Liquid Droplets |
| SLD | Start of Layer Data |
| SLD | Simulated Launch Demonstration |
| SLD | Sum of Longest Diameters |
| SLD | Safety Level Days |
| SLD | Square Law Distortion |
| SLD | Squad Leader Display |
| SLD | Sierra Legal Defense |
| SLD | System Level Diagram |
| SLD | Stop Line Detection |
| SLD | Surreptitious Listening Device |
| SLD | SLAC (Stanford Linear Accelerator Center) Large Detector (experimental particle physics) |
| SLD | Selected Linear, Definite-Clause (logical proofs) |
| SLD | Special Low Dispersion (glass) |
| SLD | Stags Leap District (California) |
| SLD | State Laboratories Division (Department of Health; Hawaii) |
| SLD | Severe Laziness Disease |
| SLD | Sherman L Dantzler (Grand Blanc, MI business consulting) |