| STL | Lambert - St Louis International Airport 
| Others |
| STL | Lambert - St. Louis International Airport, St. Louis, Missouri USA
| Others |
| STL | Licentiate in Sacred Theology
| Others |
| STL | Safe Traders List
| Others |
| STL | Santa Teresa Laboratory
| Others |
| STL | Satellite Time and Location
| Others |
| STL | Schneider Trained Liar
| Others |
| STL | School of Teaching and Learning
| Others |
| STL | Schottky Transistor Logic
| Others |
| STL | Scientific And Technological Literacy
| Others |
| STL | Segnant Technologies Limited
| Others |
| STL | Sehyooni Tribunal for Lies
| Others |
| STL | Send The Light
| Others |
| STL | Senior Team Leader
| Others |
| STL | Senior Trip Leader
| Others |
| STL | Service Transmission Lamp
| Others |
| STL | Severn Trent Laboratories
| Others |
| STL | Sgi Transistor Logic
| Others |
| STL | Share The Love
| Others |
| STL | Short Term Loan
| Others |
| STL | Short Ton Liquid
| Others |
| STL | Short-circuit Testing Liaison
| Others |
| STL | Simple Template Library
| Others |
| STL | Skoda Team Leipzig
| Others |
| STL | Slime Time Live
| Others |
| STL | Slower Than Light
| Others |
| STL | Smart Traffic Light
| Others |
| STL | Snout Tail Length
| Others |
| STL | Snout to Tail Length
| Others |
| STL | Snug Tite Lock
| Others |
| STL | Software Testing Laboratory
| Others |
| STL | Solid To Layer
| Others |
| STL | Sound Transmission Loss
| Others |
| STL | Southern Tampa Land
| Others |
| STL | Southside Technical Learning
| Others |
| STL | Space Technology Laboratories
| Others |
| STL | Speak The Language
| Others |
| STL | Speaking The Language
| Others |
| STL | Speed the Light
| Others |
| STL | Spelling That Limps
| Others |
| STL | Sport Trac Limited
| Others |
| STL | Sports, Toys, and Leisure
| Others |
| STL | St Louis Rams
| Others |
| STL | St. Louis
| Others |
| STL | Stanadard Template Library
| Others |
| STL | Standard Template Library
| Others |
| STL | Standard Triangle Language
| Others |
| STL | Standard Triangulation Language
| Others |
| STL | Stephan T Lavavej
| Others |
| STL | Steps to living
| Others |
| STL | Stereolithography Interface Format
| Others |
| STL | Sterling Tools, LTD.
| Others |
| STL | Store Longword
| Others |
| STL | Store Low
| Others |
| STL | Street Touring Ladies
| Others |
| STL | Student Technology Leader
| Others |
| STL | Student Technology Locker
| Others |
| STL | Studio to Transmitter Link
| Others |
| STL | Studio Transmitter Link
| Others |
| STL | Style Library
| Others |
| STL | Submerged Turret Loading
| Others |
| STL | Substitute Teaching Leader
| Others |
| STL | Subtitle File
| Others |
| STL | Super Touring Luxury
| Others |
| STL | Surface Tesselation Language
| Others |
| STL | Surveillance de Trajectoire Laterale
| Others |
| STL | Swelling, Tenderness, Limitation
| Others |
| STL | TV LIVE
| Others |