| Acronym | Definition |
|---|
| SIT | Situation |
| SIT | School for International Training (Brattleboro, VT, USA) |
| SIT | Stay in Touch |
| SIT | Special Investigation Team (India) |
| SIT | Slovenian Tolar (currency code) |
| SIT | School Improvement Team |
| SIT | School of Information Technology |
| SIT | Situate |
| SIT | State Income Tax |
| SIT | Somewhere in Time (Iron Maiden album) |
| SIT | Sistema Informativo Territoriale |
| SIT | Speak in Tongues |
| SIT | Stay in Tune (guitar string company) |
| SIT | Stevens Institute of Technology |
| SIT | Sterile Insect Technique |
| SIT | Say It Twice (band) |
| SIT | Storage In Transit |
| SIT | Social Identity Theory |
| SIT | Specific Immunotherapy |
| SIT | Système d'Information Territorial (French: Territorial Information System) |
| SIT | System Integration Test |
| SIT | Stress Inoculation Training (psychological approach to stress) |
| SIT | Simple Internet Transition |
| SIT | Scottish Investment Trust |
| SIT | Static Induction Transistor |
| SIT | Special Information Tone(s) |
| SIT | Slosson Intelligence Test |
| SIT | System Integration & Testing |
| SIT | Silicon Intensified Target |
| SIT | Satellite Interactive Terminal |
| SIT | Stock in Transit |
| SIT | Sepang Institute of Technology (Malaysia) |
| SIT | System Initialization Table |
| SIT | Software/Hardware Integration |
| SIT | Structured Inventive Thinking |
| SIT | Sydney Institute of Technology |
| SIT | Surface Interval Time (SCUBA) |
| SIT | Swiss Institute of Technology (ETH) |
| SIT | Slayer in Training |
| SIT | Supraspinatus, Infraspinatus and Teres minor (muscles) |
| SIT | Site Inspection Team |
| SIT | System Integration Team |
| SIT | Sharjah Institute of Technology |
| SIT | Spectrum Information Technologies |
| SIT | School Infrastructure Thrift |
| SIT | Spontaneous Ignition Temperature |
| SIT | Software Integration Test |
| SIT | Site Integration Test |
| SIT | Stuffit Document (File Name Extension) |
| SIT | Sitka, AK, USA - Sitka (airport code) |
| SIT | Shift Into Turbo |
| SIT | Stationary Infantry Target (US Army training) |
| SIT | Safety Injection Tank |
| SIT | special interest target (US DoD) |
| SIT | Sugar Industry Technologists, Inc. |
| SIT | Système Intelligent de Transport (French: Intelligent Transpiration System; Canada) |
| SIT | Shanghai Institute of Tourism |
| SIT | Site Improvement Team |
| SIT | Società Italiana Di Tossicologia (Italian: Italian Society of Toxicology) |
| SIT | System Implementation Team (NASA) |
| SIT | Strategy Implementation Team (CEOS) |
| SIT | Squadron Integration Training (US DoD) |
| SIT | Swedish Institute of Technology (Helsinki, Sweden) |
| SIT | Sample Injection Tube (flow cytometers) |
| SIT | Syndicat Interprofessionnel de Travailleuses et Travailleurs - Genève (Switzerland) |
| SIT | Strategic Information Technology, Ltd (Whitchurch-stouffville, ON, Canada) |
| SIT | Spacecraft Interface Test |
| SIT | Select in Test |
| SIT | Superintendecia de Telecomunicaciones (Guatemala Central America) |
| SIT | Société Industrielle de Transformateurs (French: Industrial Transformer Company) |
| SIT | Secondary Instability Theory |
| SIT | Scientific Integrated Test |
| SIT | Satellite Inspector Target |
| SIT | Spaceborne Infrared Tracker |
| SIT | Statement of Inventory Transaction |
| SIT | Systems Interface Test |
| SIT | Sprint in Touch |
| SIT | Subcarrier Irrespective Threshold |
| SIT | Standard Infiltration Tactics (Tom Clancy) |
| SIT | System Interoperability Test |
| SIT | Signal Identification Technique |
| SIT | Super Intendencia de Telecomunicaciones (Guatemala Central America) |
| SIT | Safety Improvement Team (various locations) |
| SIT | System Identification Toolbox (software) |