SLD may refer to:

Computers and technology

• Second-level domain, an Internet domain directly beneath the top-level domain
• Simple learning design 2.0, a specification used to express learning activities
• SLD resolution, the basic inference rule used in logic programming
• Stanford Large Detector (1992–1998), for the Stanford Linear Collider
• Superluminescent diode, a light source
• Soft laser desorption, a laser desorption of large molecules that results in ionization without fragmentation

Graphics

• Single-line diagram, of a 3-phase power system
• Straight-line diagram of a road
• Styled Layer Descriptor of map layers

Politics and law

• Democratic Left Alliance (Poland) (Sojusz Lewicy Demokratycznej), a political party in Poland
• Statute law database, UK

Transport

• Salford Crescent railway station, Greater Manchester, England, National Rail station code SLD
• Sliač Airport, Slovakia, IATA code
• Sutherland railway station, Sydney Sutherland, Australia, station code SLD

Other uses

• SLD glass, with low dispersion
• Specific learning disability, disorders intrinsic to an individual
• Supercooled Large Droplet, a type of atmospheric icing condition
• Delta8-fatty-acid desaturase, an enzyme

This disambiguation page lists articles associated with the title SLD.
If an internal link led you here, you may wish to change the link to point directly to the intended article.