| S&L | Savings & Loan 
| Others |
| S&L | State and Local
| Others |
| S.L. | Sociedad Limitada
| Others |
| S/L | SearchLight
| Others |
| S/L | Shop/Laboratory
| Others |
| S/L | Squadron Leader
| Others |
| SL | S-Lang language source code file
| Others |
| SL | Safety Line
| Others |
| SL | Saint Louis
| Others |
| SL | Saiyan Legacy
| Others |
| SL | Salt Lake City Southern Railroad
| Others |
| SL | Salzburg Land
| Others |
| SL | Same Lane
| Others |
| SL | Sandqvist Lindroos
| Others |
| SL | Sans Laquer
| Others |
| SL | Sarah Lee
| Others |
| SL | Satan's Lovers
| Others |
| SL | Satf levels
| Others |
| SL | Save Layout
| Others |
| SL | Schlage Link
| Others |
| SL | Schnell Lade
| Others |
| SL | School of Law
| Others |
| SL | Scots Lass
| Others |
| SL | Scott Laboratories
| Others |
| SL | Scott Labs
| Others |
| SL | Scott Lee
| Others |
| SL | Scottish Lass
| Others |
| SL | Screen Length
| Others |
| SL | Screen Lock
| Others |
| SL | Script Language
| Others |
| SL | Sea Launch
| Others |
| SL | Sea Level
| Others |
| SL | Sea Lion
| Others |
| SL | Seal
| Others |
| SL | Seatrain Lines
| Others |
| SL | Second Life
| Others |
| SL | Secret Lover
| Others |
| SL | Securities Lending
| Others |
| SL | Security Level
| Others |
| SL | Seed Limitation
| Others |
| SL | Sehr Langsahm
| Others |
| SL | Sehr Leicht
| Others |
| SL | Selected Linear
| Others |
| SL | Selective Light
| Others |
| SL | Self Locking
| Others |
| SL | Self-Loading
| Others |
| SL | Semantic Language
| Others |
| SL | Sensation Level
| Others |
| SL | Sensitivity Level
| Others |
| SL | Sensory Level
| Others |
| SL | Sensu Lato
| Others |
| SL | Sentential Logic
| Others |
| SL | Service Learning
| Others |
| SL | Service Level
| Others |
| SL | Set Levenshtein distance
| Others |
| SL | Shelf Life
| Others |
| SL | Sheng Lung
| Others |
| SL | Shift Lock
| Others |
| SL | Short Length
| Others |
| SL | Short Line
| Others |
| SL | Short Lived
| Others |
| SL | Shrinkage Limit
| Others |
| SL | Sick Leave
| Others |
| SL | Sierra Leone
| Others |
| SL | Signature Line
| Others |
| SL | Silenced Liberators
| Others |
| SL | Siliconix
| Others |
| SL | Simple Library
| Others |
| SL | Simple Logic
| Others |
| SL | Sine Loco
| Others |
| SL | Sine Loco (latin, "without a place")
| Others |
| SL | Single Layer
| Others |
| SL | Single Line
| Others |
| SL | Single Link
| Others |
| SL | Sit and Look
| Others |
| SL | Sith Lord
| Others |
| SL | Skill Less
| Others |
| SL | Skill Level
| Others |
| SL | Sky Light
| Others |
| SL | SL Logos
| Others |
| SL | SLavca
| Others |
| SL | Sleeper Class
| Others |
| SL | slight
| Others |
| SL | Slim Line
| Others |
| SL | Slovenian
| Others |
| SL | Slovenian/Slovene
| Others |
| SL | Slow Loader
| Others |
| SL | Small Lady
| Others |
| SL | Small Letters
| Others |
| SL | Snakes Ladders
| Others |
| SL | Sniper Lords
| Others |
| SL | Social Level
| Others |
| SL | Soft Locker
| Others |
| SL | Software Laborer
| Others |
| SL | Sold
| Others |
| SL | Song Layout
| Others |
| SL | Sos Log
| Others |
| SL | Sound Level
| Others |
| SL | Source Language
| Others |
| SL | Source Statement Library
| Others |
| SL | Spacelab
| Others |
| SL | Spanisches Liederbuch (German: Spanish Songbook)
| Others |
| SL | Speak Language
| Others |
| SL | Special Lectures
| Others |
| SL | Special Linear
| Others |
| SL | Specialized Lexicon
| Others |
| SL | Specification Language
| Others |
| SL | Specification Limit
| Others |
| SL | Spirit Lady
| Others |
| SL | Spoiler Lover
| Others |
| SL | Sport Leicht
| Others |
| SL | Sport Leight
| Others |
| SL | Sport Light
| Others |
| SL | Sport Luxury
| Others |
| SL | Sporting Lisbon
| Others |
| SL | Sports And Light
| Others |
| SL | Sports Leicht
| Others |
| SL | Sports Luxury
| Others |
| SL | Spot Light
| Others |
| SL | Sri Lanka
| Country |
| SL | St Louis
| Others |
| SL | Stackelberg Leader
| Others |
| SL | Staged Loading
| Others |
| SL | Standard Level
| Others |
| SL | Standard Library
| Others |
| SL | Standard Load
| Others |
| SL | Starting Line
| Others |
| SL | State Library
| Others |
| SL | Statement List
| Others |
| SL | Steam Launch
| Others |
| SL | Steam Locomotive
| Others |
| SL | Steel and Lead
| Others |
| SL | Step Length
| Others |
| SL | Steve Lauer
| Others |
| SL | Store Left
| Others |
| SL | Stored Logic
| Others |
| SL | Storstockholms Lokaltrafik
| Others |
| SL | Story Line
| Others |
| SL | Straight Ladder
| Others |
| SL | Straight Last
| Others |
| SL | Strand Leko
| Others |
| SL | Strange Love
| Others |
| SL | Strategic Logistics
| Others |
| SL | Street Lamp
| Others |
| SL | Strong Loft
| Others |
| SL | Structural Logic
| Others |
| SL | Structure Load
| Others |
| SL | Structured Literacy
| Others |
| SL | Student Life
| Others |
| SL | Student Loan
| Others |
| SL | Sub Ledger
| Others |
| SL | Sub-Lingual
| Others |
| SL | Sub-Lingually (under the tongue)
| Others |
| SL | Sublingual
| Others |
| SL | Subsidiary Ledger
| Others |
| SL | Sundara Laxmi
| Others |
| SL | Super Lattice
| Others |
| SL | Super Leicht
| Others |
| SL | Super Light
| Others |
| SL | Super Linear
| Others |
| SL | Super Long
| Others |
| SL | Super Luminal
| Others |
| SL | Superlight Largeformatphotography
| Others |
| SL | Superstar Limo
| Others |
| SL | Supervised Learning
| Others |
| SL | Supplement Liabilities
| Others |
| SL | Supreme Lift
| Others |
| SL | Survivors Law
| Others |
| SL | Susan Lover
| Others |
| SL | Swift Lecture
| Others |
| SL | Swingers Latino
| Others |
| SL | Switch Locator
| Others |
| SL | Symmetric Logspace
| Others |
| SL | SYSCON (System Control) Lightweight computer unit
| Others |
| SL | System Layer
| Others |
| SL | System Library
| Others |